This man has studied the Opera, He studied all body language from the Opera, and taught himself how to become an amazing speaker.
After he won the elections, He only gave speeches as a morale booster. He didn't have say much.
http://www.youtube.com/watch?v=rHAGSXBYl1gI'm sad I cannot provide the source of my information. But it's quite obvious
You can watch any of his speeches and you can clearly see his powerful gestures. I'd say he learned them from Wagner's opera's since he was a such a huge fan of Wagner.
I enjoyed this documentary, It's everything I already felt, but not said.