The Doctor didn't usually find himself at a loss for words. His ability to constantly prattle on about absolutely nothing was one of his most enigmatic qualities (in his opinion). But this girl - this Clara Oswald - she always left him at a loss for words. And he wasn't sure yet, but he thought he was starting to like it.

He opened the TARDIS doors with a quick push and bounded inside, waving one last time to Vastra, Jenny, Strax, and Ada (though he knew she couldn't see him) before shutting the doors and leaping to the console. That was another one of the aforementioned enigmatic qualities: his insistence on doing everything in (literal) leaps and bounds.

Clara, whom he hadn't seen because she was leaning against the entrance to the corridors of the TARDIS, smiled at his quirkiness as he danced his way around the console, throwing switches and flipping levers. He pulled one last lever, securing the TARDIS in the time vortex, and kissed the console.

"Are these the sort of shenanigans you get up to when I'm not around, Doctor?" Clara asked, grinning when he spun around in surprise.

"You-er-I was just-blowing dust away! That's it. The TARDIS has always been dusty. I meant to dust it, but you know, it's so difficult to find dusting time. And Yorkshire is a rather dusty town, are you sure you didn't track any dust in when..." The Doctor trailed off slowly when Clara raised her eyebrow.

She laughed at his expression. "Oh, don't look so put out, it makes your chin look even bigger than it is," she said, trying to stifle her laughter.

"My chin? There's nothing wrong with my chin!" the Doctor retorted, scratching the chin in question.

"Ooh, careful there, dear, someone could lose an eye." The statement just made the Doctor frown more, which in turn both made his chin bigger and sent Clara into a fit of giggles. Coming up the stairs to where the Doctor was, Clara tapped his chin.

"I suppose I'll have to get used to it, Chin Boy."

"Chin Boy? Oi!"

But Clara was already gone down the hall, her laughter echoing off the corridors.