Gestures are physical movements or actions made with parts of the body, such as the hands, arms, head, or face, to convey a message, emotion, or idea. Gestures can include facial expressions, hand motions, body language, and other nonverbal cues that complement or substitute for spoken language. They are often used to enhance communication, express emotion, emphasize points, or provide visual cues to aid understanding. Gestures can vary widely between cultures and can have different meanings or interpretations depending on the context in which they are used.