A bit more refinement of the game:
Would you like to play a game?
Battleship:
Describe a shared moment where we were both present, and your response is either hit or miss.
1/2 credit if you only remember the voice, full credit if you also remember the face expression.
Keep chatter to a minimum. If the shared moment was recorded it doesn't count, so if the shared moment also exists in picture form or video, it doesn't count. If it was watched or heard on a device it doesn't count. It must only exist in hologram form in your head. Watch out for parallel reconstruction of the memory. This can trick you.