I open the game, but the key doesn't appear.

I gave the code to a friend, he activated the code and downloaded the friend pass, but when I invite him, the game says that a license is needed.

I launched the game for the first time. No pass ever showed up and my steam says first time playing it. Where can I find the pass at?

I bought the full game and shared the friend's pass CD-key with my friend. He activated it and downloaded the friend's pass version. I start up the friend's pass version and click "Don't play alone" -> "Shared story". When I invite my friend the game says "Your friend does not own the full game" and kicks him out. Could you fix/clarify? What's the point of a friend's pass if I can't play with my friend?...

смогу свами сыграть, только пожайлуста не будьте 40 летним пидофи.....