Hm. Stonewalling is enough to make one suspicious, but what lead you to have doubts in the first place?

[It's a potential confirmation bias, the stonewalling, but in it there is likely a much better reason for the suspicion than people not wanting to answer questions from a stranger.

He doesn't lean, nor does Alucard relax. Instead, his eyes move ahead, then around.]

I'll presume this is not the kind of discussion suited for standing still either.