How do you ask permission before filming guests?

Permission comes before the face is in frame, out loud, with an easy way to say no. Filming a full room «for atmosphere» without asking does not hold, and it holds even less if that face later illustrates an ad. The floor needs a short sentence and a rule that a no is respected, without asking twice or catching the same face from the side. A guest sees themselves in a reel on Monday and writes in anger, and there is no decent way to undo it. A permission line and a rule: without a yes, the shot is the dish and the hands, not the face.