There seems to be particular interest in the topic of using and reading body language --non-verbal communications -- so here's more.
In the Harvard Business School HBR Blog Network, Prof. Amy Cuddy (of HBR) wrote a blog item entitled Want to Lean In? Try a Power Pose - Amy J.C. Cuddy - Harvard Business Review, which relates to her TED talk, the link to which she cites in the article. That runs about a half-hour, as I recall, and the title and link is Your Body Language Shapes Who You Are
NOTE: I started this post intending it for my blog SellingFaceToFace.com (Link here ) but realize it's equally relevant to another of my blogs, CareerSuccessHow-to.com ( Link here ) so will be dual posting in both places.
Now that I think of it, I'll probably be doing more dual posting on topics like this, such as using and reading body language, as career success how-to and the skills relating to selling and selling face to face are often very much intertwined.