Summer Beauty Do's & Don'ts

Get the lowdown on the must-have looks of the season from PEOPLE's beauty expert. By Serena Kappes

TREND: BEACHY HAIR

DO: Dry your hair naturally and use a scrunching spray to create texture for this sexy look (modeled by Evangeline Lilly and Jennifer Aniston). For straight hair, braid it when it's wet to add waves.

DON'T: Tease your tresses too much. "It's not about looking like you stuck your finger into an electrical socket," says Gage.