True eloquence consists in saying all that should be said, and only that.
— LA ROCHEFOUCAULD
When you are angry, slamming a fist on the table is effective body language, as is frowning or glaring, because it reinforces the emotion. Glancing at your watch while you are telling your date how happy you are to be spending time together is an example of your body language not getting your message across. And, a good way to find yourself in the doghouse.
Half of all body language is in the face. Remember the Motown ...