To avoid running afoul of self-link rules, let one of the other sifters know if it's youtube so they can Sift it for you...

In reply to your comment:
“Mike Caro's "Book of Tells" covers these and many more. It's old so lots of funny pictures in it. There is a video that I have also... maybe I should post part of it to youtube. Many of his points are considerably more subtle than what's given in this short video.”