Ask them who they are and what is going on.

You walk up to the fish-man and strike up a conversation with him while Marc attempts to get the attention of the troll.

: Hey, uh, you look like the man to ask.

: What's going on exactly?

: Oh, you must be today's assistant. The werewolf is our canidate, is he not?

: For this tea thing?

: Yes.

: Yeah that's him.

: Well he needs to choose a weapon before going into the next room and any armor if any.

: Don't want him completely defenseless now, do we?

: No, not at all.