The perfect answer is just asking at the start of the dungeon something like:
"Hello there! Hey, how comfortable do you feel about <X> ?"
"<Y>" or "<Z>" Response
"Cool. Let's give it a go"
And progress through from there.

I know the trope/joke for WoW players coming over is they don't communicate at all (even though this has happened before they've arrived), but really communication is key. The WoL might have echo past/mind seeing powers, but you sure don't.