IF he speaks with a low-pitched, slow-paced, downwardly inflected voice THEN he wants to exhibit confidence and has a lot of authority and power .
IF she rubs her fingers against each other THEN she conveys excitement or interest.
IF your boss supports his head with his palm, having drooping eyes THEN he feels bored and disinterested in what you say.
IF she kicks the dust or air THEN she is frustrated and dismayed.
IF he answers you with “TSK” THEN he is frustrated and dismayed.