[His mind is already on trying to figure out how to find the TARDIS - he's got a Huon locator in his coat pocket; that should help, unfortunately the range is rather limited - when Sam's words interrupt his thought processes.]
What?
[Run tests? Why would he want to - oh right.]
Oh, uh, yeah. Why not, I guess.
[Really, he'd rather not have someone with him right now - company is one thing, being held up by random humans while trying to find the TARDIS is another - but if Sam wants to come with him, the Doctor can hardly stop him. Besides, those readings the screwdriver had given him had been rather odd; it might be worth taking a look.]
no subject
What?
[Run tests? Why would he want to - oh right.]
Oh, uh, yeah. Why not, I guess.
[Really, he'd rather not have someone with him right now - company is one thing, being held up by random humans while trying to find the TARDIS is another - but if Sam wants to come with him, the Doctor can hardly stop him. Besides, those readings the screwdriver had given him had been rather odd; it might be worth taking a look.]