This tenth Doctor, he was a charmer, wasn't he? Perhaps it was the wiley smile or the unruly hair? Even when he wasn't trying to be the glowing mystery man, there was still some sort of spark in his eyes. Then again, that could have just been what happened when he looked at Rose Tyler.
"Because you're brilliant. Because you saw things I couldn't. Remember that Eye of London, big as life? Didn't see that... Wasn't looking at it the right way. But you? You saw. Brilliant. You always see the things I don't." You hear that, Rose Tyler? Your genius of a friend just called you smarter than him. Would you ever let him forget that? Though, it didn't seem worth mentioning that the cheeky blonde already had a way of smoothing the rough-edged leather bound man and that was something grand.
It seemed almost logical that the question as to why she'd come would follow; though the Doctor didn't ask. He never asked why - because he always assumed it was the allure of Time and Space - and for Rose he was certain it was no different. "Besides, I've good reason to have faith in you, saving my life and all against impossible odds." His smile was sudden and accompanied by a jumping brow. "Like it was normal. Not used to that."