At the beginning of march 2012, Israeli Prime Minister Benjamin Netanyahu gave his speech at the annual AIPAC convention.

Before he starts he waves and thanks numerous people in the audience.  His arms are lose at the elbows, as are his wrists when he waves his hands.

But look at the difference (video here) after he ends the speech, his elbows are actually locked and his hand waves are stiffer (especially between 29:26 & 29:44 into the video). It looks like he’s reminding himself to wave his hands. It reminds me of how many NAZIS ended their speeches in the 1930s/1940s.