Final answer:
When you assume an open and relaxed body posture, you are demonstrating non-verbal communication.
Step-by-step explanation:
When you assume an open and relaxed body posture, you are demonstrating non-verbal communication. Non-verbal communication refers to the transmission of messages through body movements, gestures, facial expressions, and other non-verbal cues. It can convey attitudes, emotions, and intentions without the need for verbal communication.