Have you noticed that when someone is nervous, he bites his nails or that a person looks down when he feels sad? Well, even though these people are not saying anything, their bodies are telling us how they feel. This type of communication in which our body movements, gestures and facial expressions reveal our feelings and personality is called body language.
Body language is a form of soundless communication, or silent speech. Animals cannot speak, so they depend a lot on body language. An arch its back, while a happy dog will wag its tail.
Human beings ‘speak’ three times more through their body language than through actual speech. Some forms of body language are the same throughout the world. Others change from place to place. In fact gestures that are considered to be polite in one country may be thought to be very rude in another!
Da Vinci code
The artist and scientist Leonardo Da Vinci made thousands of drawings and observations in his notebooks, but his notes appear to be made in a secret code. Leonardo was left handed and his writing goes from right to left. It can be read properly if held up in front of a mirror!