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

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TREND: LIQUID EYELINER

DO: Draw a defined black line that wings out a little bit at the end (as seen on Rebecca Romijn and Penelope Cruz).

DON'T: Wear dark lipstick or bright blush. Make your eyes the focal point.