What? I can’t hear you! Your body is shouting too loud for me to understand anything else! Body language seldom lies and is rarely subtle. If you watch someone close enough you can learn more than you might want to know. For example, take the couple sitting two rows down and to the left. His shoulders are stiff, his gaze straight ahead. Her head tilts away and her arms are folded tightly against her. Anybody with half a brain can see what’s going on. They're in a fight. Then there’s the guy on the sidewalk talking on his cell phone. His free hand is in constant motion with animated gestures and a vein sticks out on his reddening neck like an overfilled garden hose. Duh. He's angry. Everywhere you look silent ear-splitting messages reverberate over the noise coming from actual mouths.