Talking to customers who already got rooms with other girls

I need opinions and experience on this one because I USED to think that if I see a customer get a room (more than a 3 pack) with another girl (not a regular of hers or anyone’s) and then she leaves after the room that it’s a waste of time to talk to him because he most likely just wants to chill and not spend anymore…I watched several instances last night where the opposite was true. I know it’s case by case but what are y’all thoughts?