Angling for the Truth
As you would expect, the occasional liar often angles himself away from the person he's fibbing to. It's as though he can't bring himself to face you, so he turns himself away from you, either slightly or completely.
As you continue to wait for an answer from your coworkers, Dick turns to play with the paper clip dispenser located on your windowsill, which necessitates his turning away from you. At this point, he may muster up the courage to deny his guilt. Remember: it's easier for someone to lie to you if he doesn't have to look you in the eye. If he turns himself away from you, he doesn't have to bother with attempting to make awkward (and unsuccessful) eye contact, and there's less of a chance you'll catch on to his deception.
Angling the body away from the other person is a way to avoid eye contact. It's easier to lie to someone if you don't have to look him in the eye.
Dick's your man. He owes you breakfast.