Fashionable people are really limited to a few select places in Beijing. In fact, in general Beijing isn't much of a walking city, so there aren't many places with the rich tapestry of pedestrians that you might find in New York, London, or even Tokyo. I really have to search pretty hard for the people that appear on Stylites.
There are the ghastly, glitzy, new malls filled with LV-wielding ernei and enthusiastically boring white collars. There are also shopping areas like Xidan appealing to trendy young consumers, but the number of tacky people makes the searching for the truly stylish a painful process. For the really interesting people, I have to go to a few spots that attract those interested music and other creative pursuits. It's tough, but it also gives me a way to meet interesting people.