Here are pictures of famous faces in which the square is very identifiable.
Keira Knightley, who poses a hair cut to chin level layering.
Rachel McAdams, a hair cut to shoulder length with layers forming the hair volume leaving less accentuated the square face.
Megan Fox, because of their long hair and light waves which dissimulate to perfection.
Demi Moore, has a smooth, straight hair that conceals the whole face. It is the perfection of the face.