Nonverbal communication refers to the transmission of messages or information without the use of words. This includes a variety of nonverbal cues such as facial expressions, gestures, posture, and eye contact. These elements play a crucial role in conveying emotions and intentions, often complementing or even contradicting verbal communication. Understanding nonverbal communication is essential in social interactions, as it can significantly influence how messages are received. For instance, a smile can indicate friendliness, while crossed arms may suggest defensiveness. Being aware of these signals can enhance interpersonal relationships and improve overall communication effectiveness.