Holiday Beauty Do's & Don'ts

Get the lowdown on the must-have looks of the festive season, as selected by PEOPLE's beauty editor Eleni Gage. By Serena Kappes

TREND: PURPLE EYESHADOW

DO: Use it as a liner or a wash of shadow. "Purple (on Rachel McAdams, Nicole Richie and Cameron Diaz) is flattering for every eye color," says Gage. But if you're timid about bright colors, she recommends using a cream shadow – it's more sheer.

DON'T: "Put purple on your lower lashline," she says – unless you want to look stuck in the '80s.