FAKE IT TILL YOU MAKE IT: How your body language shapes who you are

UNDATED:  Those of us who have had to present before large audiences know the importance of "physical" communication - and how good body language is one of those physical principles.  But if we don't feel confident and secure in presenting, how can we make use of proper posture, gestures, and facial expressions?

Social psychologist Amy Cuddy has studied this very subject, and has found that the opposite is true.  Her studies show that positive body language - in particular, a set of easy-to-practice "power poses" - bolsters confidence and security in a presenter by raising testosterone and lowering stress hormones.  A fascinating 20-minute lecture.  Courtesy Ted Weekends via The Huffington Post.