A round face shape is determined because the face is as long as it is wide. Celebrities with a round face shape include Mandy Moore, Kate Winslet and Drew Barrymore. A hairstyle for a round face shape should have a part that is to the side, to reduce the roundness of your face. Fullness or emphasis at the crown of the head is also a good choice for a hairstyle. Keep the hair close to your face to make your face appear longer. Tapered ends and layers from about the mouth down can also make the face seem longer.