Lots to see here. Brian’s focus is intense. He’s here not to entertain or to have fun, but to get it right. You can see him cracking the whip on Carl and Al with his body language. And yet he has the presence of mind to avert his eyes just as a flash hits him in the face. You can sense his discomfort at being on display. Not so Mike, whose desperate ungainly mugging can be best appreciated in contrast to the persistent concentration of the others.