[John is also playing detective, albeit to less effect than someone like Sherlock might manage. Considering Sherlock outstripped the police on a regular basis, though, John wasn't going to dwell on that comparison and the disparity in their skills.]

[He has a notebook and pen out, everything else from his box having got stuffed into various pockets. The bloke with the thin beard is looking all right. At least like he belongs more than some of the others. John's stance is tight, guarded, though his face is as friendly as he can manage under the circumstances. He still doesn't believe this magic or new universe nonsense but he can try to be friendly with whoever the natives here are.]

Hullo there! Just trasferred over from the London office. Mad getting used to a new office, yeah? [He's not particularly adept at deception, but that's easy enough to maintain.] Are you one of the regular employees, then?