How do I ask permission before filming customers?

Ask out loud before you frame a face, and keep a no without pushing. Filming the room “for atmosphere” does not hold if someone who never agreed is recognisable. Agree who on the shift asks, and what frame you shoot if the answer is no. A recognisable table goes out, and the next day that person asks for the piece to come down. You leave with the rule: ask, wait for yes, and an alternate frame of hands, the dish, or an empty room.