I think it's important to know what suits your face shape.Here's a guide.
Hairstyles :
[FONT=Arial,Helvetica]What is the shape of your face?[/FONT]
[SIZE=-1]In order to determine the shape of your face, you will need to measure it. Measure your face from top to bottom and from side to side. If your face is oval shaped, then the length will equal to one and a half times the width. When the length of your face equals the width, then you have a round face. Triangular shaped faces have wide chins and narrow foreheads. Lastly, square shaped faces have a jawline, cheekbone and forehead almost equal in width. [/SIZE]
[FONT=Arial,Helvetica]Heart-shaped face
[/FONT]
A wide short forehead being the widest at the temples and then narrowing to a small delicate chin.
Choose softer styles with layers or curls, side parts and wispy bangs will work for you in chin length or longer styles. You want to add width around your narrow chin so avoid short full styles with tapered neck lines that emphasize the upper face. For shorter styles you need to leave weight in the back nape of the neck area to achieve a more balanced look. A Chin length bob looks great on your face because it gives fullness where you need it.
[SIZE=-1]In order to express your features, you must try to diminish the width of your forehead and make your jaw wider. If you want bangs, wear them full and curly. Wear your hair fuller at the top than near your jawline. Your hair should be either short or of medium length and point your hair towards your face, since this will help to widen your chin. If you love short cut bobs up to your chin, then you should definitely get one, since your heart-shaped face will make you look like you just walked out of a magazine. [/SIZE]
Like : Ashley Judd, Sophie Dahl,Emmanuelle Béart, Cynthia Nixon, Michelle Pfeiffer, Claudia Schiffer
[FONT=Arial,Helvetica]Oval faces
[/FONT] High forehead and a narrow slightly rounded chin. Only a little narrower at the jaw line than a the temples with a nice rounded hairline.
[SIZE=-1]Since, you are blessed with an oval face, mostly any hairstyle will look good on you. You can wear your hair short, medium or long. A wonderful hairstyle would be one in which you do a side or a center parting and let your hair rest on your shoulders. In addition, you may also wear your hair slicked back or pulled back. However, it is advisable to have your hair away from your face and not to have too full bangs. Your face shape is adaptable to almost any hairstyle and that is why you should experiment and see which one you like the best.
Like : Kate Moss, Natalie Portman, [/SIZE]Penelope Cruz, Kelly Brook
[FONT=Arial,Helvetica]Round faces
[/FONT]A wide, short forehead with a round chin and hairline. Widest at the cheeks and ears.
[SIZE=-1]If you have found out that you have a round face, remember either to have short hair or chin length hair. You should consider layering your hair right from the top and keep your hair close to your face. Do not cut your hair very, very short and have a haircut that is rounded and ends at your chin. This will exaggerate your face shape even more. Straight bangs are not recommended, but if you love bangs, you should curl them and wear them to the side. These types of hairstyles will make your face look longer, which is what you want to strive for. Do not keep a lot of hair near the sides of your face and near your ears. However, wispy curls curled towards your face is recommendable. The point of all these hairstyles is to make your face look longer and less rounder and to accentuate your beautiful features.[/SIZE]
Like: Christina Ricci, Stella McCartney, Cameron Diaz.
[FONT=Arial,Helvetica]Square Face
[/FONT] A wide, short forehead and strong square jaw line.
[SIZE=-1]A square face has a very sharp angled jawline and has square shaped eyebrows. In order to lessen these features, you should strive for hairstyles that emphasize the cheekbones. Hairstyles worn in curls and waves will give shape to your square face. The length of hair that is perfect for you is about 1-1/2” below the chin or to have shoulder length hair. Your hair at these lengths will help to alleviate the squareness of your jaw line. It is advisable not to let your hair hang and better to wear a side part than a center part. Any freeflowing hairstyle for this shape will look wonderful.[/SIZE]
Like: Minnie Driver, Renée Zellweger, Billie Piper, Jada Pinkett.
[FONT=Arial,Helvetica]Triangular or Pear shaped face
[/FONT]Narrow at the temples, slightly wider at the cheeks and widest at the jaw line, is almost a reverse of the heart-shape.
[SIZE=-1]Since you have a triangular shaped face, you want to narrow the chin and widen the forehead. Keep your hair away from your face and ear to widen your forehead. In addition, you should angle your hair towards the chin. You should keep your hair length at least up to your chin and cut your hair in lots of layers. Also if you let your hair loose tuck it behind your ears so that it will help to highlight your eyes and increase the width around this area. In addition, instead of parting your hair in the center, try parting it off-center and see the model look you have always loved! [/SIZE]
Like: Kathy Ireland
[FONT=Arial,Helvetica]Oblong or Rectangle
[/FONT] A long slender face with about the same width at the forehead and just below the cheekbones. Can have a high forehead and long jaw or a narrow chin.
Go for fullness at the sides of your face to add width in that area. Choose short to medium length styles as long styles can make your face look even longer. Suitable short styles include the Wedge design and soft wispy bangs will help shorten the appearance of a long face.
Like: Sarah Jessica Parker, Hillary Swank, Liv Tyler, Jade Jagger.
[FONT=Arial,Helvetica]Diamond
[/FONT] A cross between a heart and an oval shaped face it is widest at the check bones and narrows equally at the forehead and jaw line. Has a smaller delicate chin.
Your face shape is balanced and can be quite dramatic which allows you to try a variety of styles. As long as you are a true diamond most every style will work for your face. If you are a more dramatic diamond with a smaller chin make sure to leave weight in the back nape of the neck area like the heart shaped face when choosing a short style. Wispy bangs help create more of an oval look and graduated bobs that fall to chin length will also look great.
Like: Reese Witherspoon, Cate Blanchett, Heidi Klum, Sophie Ellis Bextor.
articles from http://www.indiaparenting.com/beauty/beauty019.shtml and http://your-styles.com/faceshapes.html
Hairstyles :
[FONT=Arial,Helvetica]What is the shape of your face?[/FONT]
[SIZE=-1]In order to determine the shape of your face, you will need to measure it. Measure your face from top to bottom and from side to side. If your face is oval shaped, then the length will equal to one and a half times the width. When the length of your face equals the width, then you have a round face. Triangular shaped faces have wide chins and narrow foreheads. Lastly, square shaped faces have a jawline, cheekbone and forehead almost equal in width. [/SIZE]
[FONT=Arial,Helvetica]Heart-shaped face
[/FONT]
A wide short forehead being the widest at the temples and then narrowing to a small delicate chin.
Choose softer styles with layers or curls, side parts and wispy bangs will work for you in chin length or longer styles. You want to add width around your narrow chin so avoid short full styles with tapered neck lines that emphasize the upper face. For shorter styles you need to leave weight in the back nape of the neck area to achieve a more balanced look. A Chin length bob looks great on your face because it gives fullness where you need it.
[SIZE=-1]In order to express your features, you must try to diminish the width of your forehead and make your jaw wider. If you want bangs, wear them full and curly. Wear your hair fuller at the top than near your jawline. Your hair should be either short or of medium length and point your hair towards your face, since this will help to widen your chin. If you love short cut bobs up to your chin, then you should definitely get one, since your heart-shaped face will make you look like you just walked out of a magazine. [/SIZE]
Like : Ashley Judd, Sophie Dahl,Emmanuelle Béart, Cynthia Nixon, Michelle Pfeiffer, Claudia Schiffer
[FONT=Arial,Helvetica]Oval faces
[/FONT] High forehead and a narrow slightly rounded chin. Only a little narrower at the jaw line than a the temples with a nice rounded hairline.
[SIZE=-1]Since, you are blessed with an oval face, mostly any hairstyle will look good on you. You can wear your hair short, medium or long. A wonderful hairstyle would be one in which you do a side or a center parting and let your hair rest on your shoulders. In addition, you may also wear your hair slicked back or pulled back. However, it is advisable to have your hair away from your face and not to have too full bangs. Your face shape is adaptable to almost any hairstyle and that is why you should experiment and see which one you like the best.
Like : Kate Moss, Natalie Portman, [/SIZE]Penelope Cruz, Kelly Brook
[FONT=Arial,Helvetica]Round faces
[/FONT]A wide, short forehead with a round chin and hairline. Widest at the cheeks and ears.
[SIZE=-1]If you have found out that you have a round face, remember either to have short hair or chin length hair. You should consider layering your hair right from the top and keep your hair close to your face. Do not cut your hair very, very short and have a haircut that is rounded and ends at your chin. This will exaggerate your face shape even more. Straight bangs are not recommended, but if you love bangs, you should curl them and wear them to the side. These types of hairstyles will make your face look longer, which is what you want to strive for. Do not keep a lot of hair near the sides of your face and near your ears. However, wispy curls curled towards your face is recommendable. The point of all these hairstyles is to make your face look longer and less rounder and to accentuate your beautiful features.[/SIZE]
Like: Christina Ricci, Stella McCartney, Cameron Diaz.
[FONT=Arial,Helvetica]Square Face
[/FONT] A wide, short forehead and strong square jaw line.
[SIZE=-1]A square face has a very sharp angled jawline and has square shaped eyebrows. In order to lessen these features, you should strive for hairstyles that emphasize the cheekbones. Hairstyles worn in curls and waves will give shape to your square face. The length of hair that is perfect for you is about 1-1/2” below the chin or to have shoulder length hair. Your hair at these lengths will help to alleviate the squareness of your jaw line. It is advisable not to let your hair hang and better to wear a side part than a center part. Any freeflowing hairstyle for this shape will look wonderful.[/SIZE]
Like: Minnie Driver, Renée Zellweger, Billie Piper, Jada Pinkett.
[FONT=Arial,Helvetica]Triangular or Pear shaped face
[/FONT]Narrow at the temples, slightly wider at the cheeks and widest at the jaw line, is almost a reverse of the heart-shape.
[SIZE=-1]Since you have a triangular shaped face, you want to narrow the chin and widen the forehead. Keep your hair away from your face and ear to widen your forehead. In addition, you should angle your hair towards the chin. You should keep your hair length at least up to your chin and cut your hair in lots of layers. Also if you let your hair loose tuck it behind your ears so that it will help to highlight your eyes and increase the width around this area. In addition, instead of parting your hair in the center, try parting it off-center and see the model look you have always loved! [/SIZE]
Like: Kathy Ireland
[FONT=Arial,Helvetica]Oblong or Rectangle
[/FONT] A long slender face with about the same width at the forehead and just below the cheekbones. Can have a high forehead and long jaw or a narrow chin.
Go for fullness at the sides of your face to add width in that area. Choose short to medium length styles as long styles can make your face look even longer. Suitable short styles include the Wedge design and soft wispy bangs will help shorten the appearance of a long face.
Like: Sarah Jessica Parker, Hillary Swank, Liv Tyler, Jade Jagger.
[FONT=Arial,Helvetica]Diamond
[/FONT] A cross between a heart and an oval shaped face it is widest at the check bones and narrows equally at the forehead and jaw line. Has a smaller delicate chin.
Your face shape is balanced and can be quite dramatic which allows you to try a variety of styles. As long as you are a true diamond most every style will work for your face. If you are a more dramatic diamond with a smaller chin make sure to leave weight in the back nape of the neck area like the heart shaped face when choosing a short style. Wispy bangs help create more of an oval look and graduated bobs that fall to chin length will also look great.
Like: Reese Witherspoon, Cate Blanchett, Heidi Klum, Sophie Ellis Bextor.
articles from http://www.indiaparenting.com/beauty/beauty019.shtml and http://your-styles.com/faceshapes.html