books.google.com.ph - Anyone who can successfully read people can communicate and hold power. It's human nature to make decisions quickly, based on subconscious impressions of how a person looks and acts. Police officers and poker players often look for non-verbal cues in the people they deal with. They call these cues 'tells'...http://books.google.com.ph/books/about/The_Power_Of_Nonverbal_Communication.html?id=plCVYnnUhjoC&utm_source=gb-gplus-shareThe Power Of Nonverbal Communication