A square face has a broad, angular forehead and a jaw with a defined, often 90-degree-adjacent corner at the hinge. Width stays consistent from temple to jaw rather than tapering, and the chin is flat or minimally curved rather than pointed. Soften the jaw's hard corner and add movement at the temples and chin. Rounded shapes — in a haircut's ends, in frame lenses, in a beard's edge — counter the squareness without erasing the jaw's natural strength, which most square-faced people are better served by softening than hiding.