Round faces are different from chubby faces and differ in the facial features also. Basic geometry of the two kinds differs vastly from one another. A round face would have the perfect round shape with the length and the width of the face reading the same size while a chubby face might have extra cheek fat or extra fat due to body fat. Oval face shapes are the ones that would go with any kind of hairstyle. So one has to be very careful in choosing short hairstyles for round faces, as a wrong choice would make the face look more round and chubby.
Breaking the volume of the face is an important aspect and all it requires is to break the volume of the hair or to make it appear as if the volume is broken. If the decision is to keep the hair real short, then the best option to go for the pixie cut. A pixie cut will keep the hair short and intact in volume and will also give a spiky and wet look to the hair, leaving it sexy. Such types of hair are easy to maintain and have also been tried by many of the super models and actresses.