Arwen smiles a little before looking toward the office to see if Jack was heading this way. She didnt want to leave the Doctor alone for she felt he needed the company and would rather be safe than sorry in case the Doctor needed something. Looking to the Doctor who was laying down she looked at him thoughtfully. "Doctor? How else would you have been able to tell if I was a Time Lord. Aren't there others ways of knowing?" She asked curiously, knowing that this may not be the thing to talk about but she was sure that being in silence would be a bit odd for some bit of time.