After The Doctor got his unconscious, future-self (and rightful owner of this TARDIS) settled in bed and was quite sure he was neither going to wake up or die, The Doctor left him the hell alone. He went to the TARDIS wardrobe, exchanged his clothes to ones a bit more fitting with this regeneration - comfortable shoes and no wool, thank you very much.
He stepped out of the TARDIS, pocketing the key with one hand and flipping his coat's collar into position with the other. He made sure the door was locked firmly before he pocketed his key and walked away from it, and back toward the hotel. He'd made it about half-way when he spotted someone walking toward him. He waved, cheefully, and squinted.
"Hello!" he said, brightly. "Looking for someone?"