Holy crap Nash, of ALL people I figured you'd studied body language a little than what your cards show.
Eye contact is the number 1 way of getting and keeping someone's attention and it also conveys, ahem, truthfulness. That's why the "He looked me straight in the eye and told me..." came from, but I figure you know that.
An easy way to tell if someone is lying is eye contact or lack thereof. Typically if someone is lying they look away, it's a natural response. HOWEVER, if you are familiar with this and look some straight in the eye at all times, even through the bottom of a glass, it indicates over-compensating of one's point or message. Take that as you want. Do some research, you'll see. Body language is critical to communication. It's fun stuff to learn about.