[It's easier, like this. It means they're on the same level. While this man is certainly no native, it still is a step in the right direction. He is treating this like a foreign planet with foreign people. You say or do the right thing, you unlock a door.]

That... hrm. I see. [He ducks his head and breathes in and out a few times with a sound while covering his nose and mouth. His opposite hand eventually raises and he lets out a sigh of relief.] Sorry about that; false alarm. Anyway, that seems. Um. Well, it's curious, for certain. I haven't come across any texts thus far that describe anything like this happening -- not in myths or folklore.