Originally Posted by ancman

It’s amazing how many don’t understand that. I’ve seen captains get bent out of shape over FA jumpseaters who come up front and say “Hi, I’m riding in the cabin jumpseat” without “asking” them for a ride. There is no permission required for an FA jumpseater.

The word “permission” isn’t even used anymore in reference to flight deck jumpseaters. The captain is responsible for verifying that they meet the proper requirements and possess the proper documentation, and nothing more.