3. Plant your feet in an open, wide stance.
You may think no one is looking at your feet, but the correct stance can demonstrate confidence. Standing with your feet too close together can make you appear timid.
As a general rule of thumb, aim for a stance that's in line with your hips and shoulders. You want to have your feet about a foot apart, pointing outward.
"A confident person literally has two feet firmly planted on the ground," Glass says. "You're more balanced physically, and it shows more confidence than if your legs are crossed or together."
Also keep in mind the difference between an open and closed stance when talking to someone. Angling your feet outward and in the direction of the person you're speaking with shows interest, trust, and receptiveness, while a closed stance can convey disinterest.