When we read a billboard, its message is usually larger than life and quite clear. Is it possible to read people's thoughts and feelings just by looking at them? Well, we can get pretty close if we learn to identify the silent signals they send. We send signals all the time and may not even be aware of it. Gestures we use and faces we make send signals. The volume, speed and inflections of our voices communicate in ways that we may not intend. (Learning...