The human version of the Doctor remembered everything that had happened to him, he was essentially the same man as the Time Lord; which consequently meant he could remember what the TARDIS had been like before, and of course had no shame in showing the excitement getting a new model of his ship brought to him.
"Wow," he said in a low voice that sounded somewhat like a whistle. "She's really done herself proud this time," he said as he looked around the walls and central column, taking in every detail about it. "I've got to say, I think I might even prefer this to what it was like the last time I was here, and I honestly thought I'd never say that."
The Doctor just smiled knowingly at him as Amy shot him a somewhat confused look, she hadn't yet taken her eyes off the new arrival, and Rose's smile grew to the size that one would imagine to be painful.
"Well," said the Doctor coughing, "every where and every when. Where would you like to start?" Both Rose and Amy were too lost in their own emotions to make any jokes at his expense and as neither replied he questioned whether either of them had heard him, but decided not to push it. 'When was the last time she took me where I wanted to go anyway,' thought the Doctor as he gave the console a loving stroke.
He couldn't deny that he was very intrigued to see what would happen next; if they were on a parallel Earth, which he was pretty damn certain they were, then which universe would they be going to now, and then he had a thought which made him eternally grateful Amy couldn't read minds, 'what if we can't ever leave this universe.'
The Doctor didn't know how to feel about that question, but what is the point in worrying? That's hardly going to change anything. He put the question to the back of his mind as he looked over at his three companions. He pretended nothing was wrong as he used that overconfident cockiness he had to hide behind like always.
Anyway, he couldn't pretend he wasn't happy. This was the closest he had come to having everything he wanted in a very long time. He had Rose back. And that made up for everything else in his mind, because that was all he wanted at this moment in time.
