The Doctor didn't look at Bill as she entered the room, nor did he mind that she loitered. This meeting was for her as much as it was for him. Just from the way he spoke, even the way she looked at him, whatever was on her mind... whatever happened in their shared future... was eating at her conscious. The Doctor wanted to make this as easy as possible for her.
"Wherever you want," the Doctor said, letting her choose what she felt was most important.