"That's all I ask," she replied with a chuckle. Rose moved her legs between the handles so she could sit down on the lowest bar, and rest her arms on the top. Watching him carefully, Rose was trying to decide that if he did seem off or if it was just being typical Doctor. With that brilliance and all of time and space at your finger tips, it must be incredibly easy to let your mind wander for so long.
Her eyes raised as he mentioned that he couldn't get exhausted. A part of her wanted to say something to contest that statement, but she held back. After the whole comment about what he had in his pockets, Rose didn't want to make any more comments like that. Even though she was sure that he has heard something worse from Ianto, Jack and even River.
Rose flickered a smile, but she wasn't entirely sure she understood his joke. Not surprising.
"Are you sure?" Rose tried to keep her tone lighthearted, but she wasn't entirely convincing that she hadn't been worried about him. "Nothing for today. Though I thought tomorrow we could go somewhere and watch the supermoon? We've seen it before, but the sight never gets old." Rose was grateful that she had come to appreciate events like these that she seemed to take for granted before she had met the Doctor.