[He does feel that tremble and it makes his hand still. Suddenly he feels... very off center as he looks back up at Keith, meeting his eyes.]
[No, no, no, he has to be mistaken, he has to be-- reading too much into this moment. It's because he's feeling vulnerable from his conversation earlier, that's all. That's... all, right? This is something he's known for years. That-- he has to be mistaken. Wishful thinking, or... something.]