The tea kettle whistles and The Doctor pouring into the two mugs, "Take what tea you'd like." He takes Rose flavor and non-verbally replies, 'yes'. Then looks at his forearm where Bulma rests her hand gently.

"I don't know anything about this place. Nadda. Not a thing."

Hopefully, they don't ask him to open up, after all - they're not sticking around and it's bad enough right now that they're still around him.

"It might... Might be a good idea for both of you to go."