Holding your arms down squishes them against your body, making them appear wider. Placing your hand on your hip is an easy way to stop the squish, says Ginger Burr, founder of Total Image Consultants. If that looks too posed for you, keep your arms at your sides without resting them down. 'Let there be a little space between your body and your arm,' says Burr. If you’re having trouble making it look natural, start with your hand on your hip and then bring it back down. Your shoulder will fall back, making it easy to create the space you want.