Keira Knightley

Hair How-To: A chin-length cut, like the one that Knightley recently debuted, can be dressed up with a side part and a 1-inch curling iron. To prevent your waves from falling flat, use a lightweight volumizing hairspray before and after you wrap each section around the iron. Try Pantene Pro-V Fine Hair Solutions Touchable Volume Hairspray, $3.99.

Makeup Tip: Make your eyes look extra big and captivating for a holiday bash with false lashes. Use a half strip or a cluster of individual lashes. Curl your real lashes, apply a coat of mascara, then stick on the fakes. When the glue dries, curl your fringe again, and swipe on another coat of mascara.