Gestures are movements of the body, especially the hands and arms, that convey messages or emotions without the use of words. They can enhance communication by emphasizing a point, expressing feelings, or indicating direction. Common gestures include waving, pointing, and nodding, which can vary in meaning across different cultures. In addition to hand movements, facial expressions are also considered gestures. For example, a smile can indicate happiness, while a frown may show disapproval. Understanding gestures is important in social interactions, as they can provide context and clarity to verbal communication, making it more effective and engaging.