Posture and gestures reveal a person's feelings. Liars tend to make less enthusiastic gestures. At times, the gesture may not fit with what is being said. Liars tend to hold themselves at a greater distance from other people. They also have a less relaxed body position. You may notice, too, nervous behaviors such as twisting a ring or toying with a button. (par.4)
What are the key terms and details?
What is the author's point in paragraph 4?