We know, we said not to go poker straight in the previous slide, But you can work straight hair to your advantage — if you have layers. A straight, one-length hairstyle tends to make the face look fuller, because it “creates a geometric hard line,” says NYC-based hairstylist Nathaniel Hawkins. (That’s the opposite of what you really want, which is to add dimension and give your hair movement.)

What to do: Add layers near your cheekbones to highlight your bone structure and minimize a round face. Also scatter in a few layers below your chin to get a super slimming look like Jennifer Aniston’s. Now you can rock the sleek and slim look at the same time.