How to Get Your Way With Body Language

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Hold your head up

There's a good reason why "jump for joy" is a cliché. When you feel happy and confident, your body automatically lifts up, Wood says. You may raise your head, shoulders, and/or chest, and momentarily push up on the balls of your feet. Feeling down? Hold up your head, bring your shoulders back, sit up, and smile. "It can change your mood in less than a fraction of a second," Wood says. Believe it or not, our body movements actually change our feelings.

Next: Watch your arms