So the final presidential debate has taken place. I haven't watched the whole thing yet, but I reckon the first five seconds has something important to say. Watch how Obama lingers over the handshake, whilst McCain comes over as wanting to escape pretty damn quick. Same ritual in all of the debates, including Biden/Palin. McCain's body language suggests antagonism - "Let's get the pleasantries over with real quick and get down to business". Obama (and Biden) offer something different. "Sure I can't stand you, but this is a moment of human interaction, and as such deserving of respect." I'm sure it's a deliberate move from the Obama camp. And there's plenty of research out there to suggest that you underestimate the power of your shake at your peril.