Here are two TED Talks that may be of interest to you:
ED Talk: How Body Language and Micro Expressions Predict Success - Patryk & Kasia Wezowski
The above video presents the work of the Wezowski's regarding micro expressions and how they communicate meaning. They also explain that leaders have keen abilities in nonverbal language.
How to Spot a Liar
The above video with Pamela Meyer: "On any given day we're lied to from 10 to 200 times, and the clues to detect those lie can be subtle and counter-intuitive. Pamela Meyer, author of Liespotting, shows the manners and 'hotspots' used by those trained to recognize deception -- and she argues honesty is a value worth preserving."