The Doctor beams smiling that person who just came along, "Don't know. Given that time isn't timey-wimey here. Doesn't seem to exist at all."

The Doctor's widen at her statement, "Oh, you are clever," his tone clearly impressed. "Yes, this was my home."

There's something of a look in his eyes that he hasn't seen this for quite awhile. Deep reminiscing.

"Sky's not right but otherwise.... Where are you from?"