Excuse me ENV, That Ain't No Table Jerry Coyne is Pounding
Evolution News and Views has an article From Jerry Coyne, More Table-Pounding, Hand-Waving but Jerry isn't pounding the table, well maybe unintentionally from the bottom. And the hand that is waving is so you don't notice what the other hand is pounding. Just make sure that if you shake his hand, shake the hand he was waving, unless he switches mid-stroke. Then just slowly walk away and make sure he doesn't come around and pat you on the back when you are leaving.