Behaviors such as eye contact, appropriate gestures, and physical closeness that enhance the quality of the relationship between the speaker and listeners are known as behaviors.

Behaviors such as eye contact, appropriate gestures, and physical closeness that enhance the quality of the relationship between the speaker and listeners are known as: immediacy behaviors

immediacy behaviors are a set of behavior that carried out as an effort to create a sense of warmth/comfort during the communication process.  Using immediacy behaviors have proven to make communication make more effective and make you appear more trustworthy.