Donald Trump emulates much of that pantomime. He does so in a less exaggerated way because everyone can see him up close on TV.
In Hitler's case he wanted the folks in the back to see that he was agitated.
I’ve noticed that myself. But I don’t think it’s because The Donald is unaware of the rhetorical effect he creates.
I’m pretty sure he just doesn’t really care if he’s persuading the crowd or if they agree with him.
It’s probably because after spending a million and a half of his own money, he’s still got about ten billion (more or less) reasons to tell everyone to **** off.
Yeah, his speaking style and manner is appalling. You want someone ‘slick’? ;^]
But he could try harder, you’re right.