Nonverbal communication makes up for more than 70% of the entire message that we are trying to put across to people in front of us. During presentations this becomes all the more crucial since two way communication is limited so you need to be able to use an effective tool to keep your audience hooked onto your content, and make sure that you are aware where they are losing interest or not getting what you are speaking about.
AFTER ALL, IT COULD MEAN THE DIFFERENCE BETWEEN A DEAL LOST AND A DEAL WELL CLOSED!!