How to use a birthday card as a party game
Let the birthday guest decide when to start.
Open the card first
Write a message and sign it before handing it over. Let the birthday guest decide whether to share the prompts with the table or keep the card as a souvenir.
Choose a version everyone can play
Offer a free pass, and allow any drink. For a version without a drink rule, ask people to raise a hand or share a short story when a prompt applies. Stop when the conversation naturally moves on.