Head Bobber

My coworker from Atlanta looks just like the actor Richard Kind. You might remember him from the TV show Mad About You. My coworker, let's call him Head-Bobber, is extremely annoying. He looooves being a consultant. He uses consulting jargon all the time. And the annoying trait I noticed today is that he sits at his computer typing and bobbing his head. Bobbing, bobbing, bobbing. It's like he's constantly, silently agreeing to something. Or perhaps me has a beat of music going in his head and he's bobbing in a very white-man-non-rhythmic way.