Which of the following is an example of non-verbal communication?

Non-verbal communication encompasses a wide range of ways we convey messages, emotions, or information without the use of words. Each of the examples contributes to this form of communication.

A thumbs up gesture is a classic example, as it visually represents approval or agreement. This action conveys a specific meaning without the need for verbal expression, reinforcing the concept that gestures can communicate feelings or responses succinctly.

Similarly, a smile while nodding combines facial expressions and body language, creating a positive affirmation. The smile conveys warmth and friendliness, while nodding signifies agreement or understanding, demonstrating a supportive non-verbal interaction.

Saying "I'm not worried" with a shaky voice is somewhat contradictory because the tone and physical expression can be perceived as anxiety rather than reassurance. However, it still incorporates non-verbal cues, as the voice's shakiness communicates a level of distress that contrasts with the spoken words.

Given that all these examples illustrate the multifaceted nature of non-verbal communication, the answer encompasses the different manifestations of how we express ourselves without words. Understanding these various non-verbal cues is crucial in health communication, as they can significantly affect the interpretation of messages in clinical and interpersonal settings.