A style that is slightly longer than the chin, shaped and softened around the edges, flatters a square face. This gives the illusion of length to your face. Hair should not be cut shorter than, or in line with the chin, as this would make the face appear squarer. Avoid center partings and straight bangs. For someone with a heart shaped face balance between the forehead and chin is very important. Layered hair shaped along the face near the chin, thick at the bottom and with layered bangs will provide fullness where needed. Straight styles, which cling to the face, would accentuate the narrow jaw line and is not recommended.
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.