Over-acting is a term used to describe exaggerated or melodramatic facial expressions, gestures, tone of voice, or overall acting style. There are a variety of synonyms that can be used to express the same idea, such as hamming it up, chewing the scenery, scene stealing, melodramatic, over-the-top, or histrionic. Hamming it up refers to actors who try too hard to be funny or dramatic, while chewing the scenery is when actors are so overly expressive that they draw attention away from the story. Scene stealing is when actors try to become the center of attention, while melodramatic refers to actors who exaggerate emotions. Over-the-top describes when something is unnecessarily extreme, and histrionic is a term used specifically to describe overly dramatic behavior.