In animals it's nonverbal and "acoustical" gestures of establishing hierarchy
Dominance signal - Wikipedia

This wikipedia article lists vocal quality, facial and physical signaling in humans, but I think it's much more. It's everything from interrupting, posturing, mean girl comments and gestures, etc., all the things do to impart that one person is superior or dominant to another. My therapists faked knowing many things they couldn't possibly have known, and I was awed at the time.