The Overprivileged, in Training: The first day of school, according to Mia Lin, 16, of Framingham, Mass., "is like a movie premiere." That's when she and some of her well-off friends get the opportunity to give fellow students the benefit of their informed summer fashion decisions as they jockey for position in the school's social order. Lin told the Boston Globe that her "style" is "urban" and shoe-oriented. "I have about 90 pairs. I wear whole outfits just to accent my shoes," including black, red and gold Supra Chad Muska Skytops, which give her, she said, "a swagger boost." "Every year is an opportunity to redefine your style."