Besides the pretty pastels and neutrals, FACE carries some brazenly colored nail polish (emerald green, sky blue), juicy red glosses, and little pots of jewel-tone glitter. Swabs and tissues at hand make a quick do-it-yourself tryout refreshingly easy. Subway: R, W to Prince St. Other locations: 1263 Madison Ave., between E. 90th and E. 91st Sts., Upper East Side, PHONE: 212/987-1411; Subway: 6 to 96th St. 226 Columbus Ave., between W. 70th and W. 71st Sts., Upper West Side, PHONE: 212/769-1420; Subway: 1, 2, 3, 9 to 72nd St. 10 Columbus Circle, at W. 59th St., Midtown West, PHONE: 212/823-9415; Subway: 1, 9, A, C, B, D to Columbus Circle.