If you have a square face you definitely want to try and soften your angles a bit. These cool specs from Oliver Peoples are subtly round and upswept and will help to bring a softness to an angular, square face.

To try: Oval, round or ever-so-slightly angled or butterfly shapes.

Steer clear of: Geometric shapes that will emphasize the angles of your face.

Next: A square-faced celeb shows off her perfect specs