Following along behind the "Lyin' Tamer"

You can come to your own conclusions about who has or has not taken performance enhancing drugs in sports. However, there is a fascinating analysis of body language in the Senate hearing today in this article. The author doesn't come to any conclusions about the testimony, but it's quite clear he thinks one witness is much more likely to be truthful than the other one.

Reading body language

Lots of communication isn't in words. This article on Wikihow is a nice summary of non-verbal signals you may see in Rochambeau, or Rock-Paper-Scissors game. It's also worth considering how gestures can vary in different cultures. Here's a useful, albeit long, article on body language in Asian countries. Now, the real trick is seeing if you can spot your own body language, as your gestures seem natural to you.