Which non-verbal communication technique includes mannerisms and body posture?

Body language is the non-verbal communication technique that encompasses mannerisms, facial expressions, gestures, and body posture. It plays a crucial role in how messages are conveyed and interpreted in interactions. For instance, an upright posture can signal confidence, while crossed arms may indicate defensiveness or discomfort. Recognizing and understanding body language can greatly enhance communication, as it often conveys feelings and attitudes that words alone might not express.

In contrast, vocal tone refers specifically to the way words are spoken, including aspects such as pitch, volume, and cadence. Written communication involves the use of text to convey messages, which relies entirely on the written word and lacks any non-verbal cues. Lastly, visual aids encompass tools like charts, graphs, and images that assist in communication but do not inherently involve the non-verbal signals associated with body language. Thus, body language stands out as the technique that directly relates to mannerisms and body posture.