DOCTOR: He asked you a question. Will you help me?

CLARA: You shouldn't have been listening.

DOCTOR: I wasn't. I didn't need to. That was me talking. You can't see me, can you? You look at me, and you can't see me. Have you any idea what that's like? I'm not on the phone, I'm right here, standing in front of you. Please, just, just see me.