look, president obama attacks success and therefore unpresident obama, we have less success, and i will change that. >> body language. we'll take the president first. they were both like wind mills. i got the wind mill thing going here. they're both like this. first of all, what's this? >> when you're doing this chopping motion, you're trying to be emphatic. >> two hand chopping. >> the difference is if you watched, obama was very animated. very big large gestures. you can tell he's playing to the crowd because it's context dependent. he's dancing, moving all over the place with these large gestures. >> why? what is he trying to get across. >> he feels positive, happy, he knows the crowd is enjoying what he's saying. he's kind of doing the dance. when we get to romney, you see a completely different picture. he's much more serious. there's an ambiguous anger in his face because he wants to show he's right. you see the brow come down, his lips tighten, his jaw cle clenc.