When selling, it's not necessarily what you say but rather how you say it that makes the sale or breaks it. If you say one thing and deliver another message with your body, people will always believe your body language above your words. It gets worse: in addition to taking your body language at its value, they'll also assume you understand what you are saying. Buyers won't trust you if your words and body language don't match; if you appear anxious, they won't trust you either. They won't be confident in you if you don't have confidence in yourself. For them to have faith in you, you must possess both physical and mental confidence.
