Highlighting is a process of applying a lighter shade to your hair, different from your natural color. Highlights is of the lighter shade while lowlights mean a darker one. Both are sometimes used during the whole hair coloring process in order to achieve a more dramatic effect. Some people do this to cover graying hair, though it is mostly achieved for fashion purposes. It reflects as someone modern, trendy and creative. It can definitely change your looks, from the boring one-shade head to a more striking crown. Blonde is commonly used as highlights, while brown is for lowlights. You may visit a salon near you to get a professional advise about highlighting.