So now YOU are the body language expert? Or do you just specialize in faces???
No, if you watched the audiences, with an open mind, there's no way you wouldn't see it. You don't have to be a "body language expert" to read emotions on people's faces. All humans have that capability. I'm sure you know when someone you are around is angry with you, or has good news, or is signaling sexual desire. These are all human emotions that we can all read. Stop trying to mystify it. There's nothing mysterious about it. We can all tell when someone is angry. We can even judge degress of anger by someone's face. Be honest.