Did you know that if you develop "skillful elbow touching" you triple your chances of getting what you want? That means that if your booksigning is slow and you decided to converse with those browsing the bookstore and you touch them on the elbow, they are three times more likely to come buy your book. Cool, huh? I'm going to try it sometime.
And did you know that a person who places their entire hand in their pocket except for their thumbs is displaying their confidence and authority?
My friend loaned me this great book called The Definitive Book of Body Language by Allan and Barbara Pease ... I recommend it to everyone. Not only will it help you understand people's reactions at booksignings, conferences, etc., but it could be a great book for character development as well. What habits do your characters have when sitting at the bus stop or talking with their superior in the office?
Not only has it been informative, it's been very entertaining ... and they use a lot of real-life examples: Bill Clinton holding two fingers in front of his mouth (the biggest lie giveaway) while answering questions about Monica Lewinsky ....
Anyway, I've been having a ball reading it and thought you may find it informative or entertaining. Just be warned, you will become self-conscious about how you're holding your arms, hands, crossing your legs, etc. You will also begin analyzing everyone you know, and the discoveries are quite interesting.