Most women have some natural wave in their hair. If you have a round face, such as Glee's Jenna Ushkowitz, pictured here, consider growing your hair shoulder-length or longer, then air-drying it, scrunching as it dries. This allows your natural wave to come out. Then you can play with your hair, twisting it and pinning it back or creating little braids on the sides and pinning them back.
More on face shapes: