I have to admit that during his Prozac debate i wavered between thinking he was intentionally playing it cool and presidential while ignoring the mormon leveraged-buy-out sleaze on his right, and him non-verbally saying "Take this job and shove it, i don't really like working here no more"
He then accepted coaching, probably a tough thing to do when you da boss, exhibiting exaggerated body language (such as jutting his chin out and head forward whenever mittens talked, which is not normal for obama but was killer effective) so he looked engaged, interested, and daring mitt to take a shot at his exposed chin.
Bill's convention speech was still the game changer IMHO.
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