(3 of 10) Best Dressed Party GirlsThe holidays are here, which means office parties, cocktail hours, and other merry-making are bound to fill up your social calendar. To help make festivities all the more fun, we’ve outlined the 10 best party dresses for every shape and style. Camilla Belle The Petite Gamine: Pint-size party girls can add some curves with the season’s ruffled dresses. Actress Camilla Belle looks elegant and ethereal in 3.1 Phillip Lim’s two-tiered cocktail number. 3.1 Phillip Lim Dress, $770.