If you have a small chin, then you have a heart-shaped face. A heart-shaped face is larger on the top half of the face, between the cheek bones and the forehead. It then tapers down to a small chin, creating a heart shape. Some hairstyles are better than others to create a larger looking chin.
Having a small forehead can make some people feel very self conscious about their face shape. Thankfully, there are certain looks and styles you can try with your hair, that may ease the discomfort of having a small forehead. If you want to take the focus away from it, learn some hairstyles to make yourself a little less self-conscious, and a lot more self-confident.