Looks like he didn’t have anything to read on the teleprompter so he just looked away.
He is so confused he doesn’t know what to do so he just sits there with a blank, empty look in his eyes. He doesn’t know if he should answer questions that he probably can’t comprehend the meaning of to begin with. He’s probably wondering if he should get up and leave the room or stay seated. Without his handlers he is completely lost. Just look at him. This is really frightening. This senile old man is lost in the fog that’s completely clouding his brain.