[Frowning at the incredibly impressive book, he tilts his head to the side and watches the new person in amazement. Hey, he doesn't mind who answers, as long as they know what they're doing cause he certainly doesn't. Putting on his best smile, he taps the book before setting it down very carefully.]

Brilliant! Hello, I'm the Doctor. Well, sort of, not quite. And you are? Also, by any chance do you know how this book works? I mean, I get the basics but how does it work exactly? I've seen something similar before but it tended to burn your eyes out and then it was very tricky to use, as you'd imagine. Should I got looking for sunglasses or will I be fine? I'm not even sure I have sunglasses-- well, thats not good. Well, I have my glasses, I suppose.

[And he could go on for hours without even needing a reply. Some like the sound of their voice, the Doctor was almost in love with his.]