A secret poker game you can play on the subway

For a second I wondered how would you assign suits to people — but quickly realized that this would be easy, but probably racist.

If you eschew the standard 4 suit deck and go for a differently scaled one I think it's pretty simple - just do it based on clothing choices or items carried with more value given to a rarer case.

Things like beanies, grocery bags, formal shoes could all be used to make suits and you have a bit more choices to play with on how you count the person. Do I count them as a "formal shoes" or a "grocery bag"? What do I think I'm more likely to see board later?

Maybe if the passenger is literally wearing a suit, that's a suit. Or any shirt color besides white. And you can't get a flush of non-suited passengers.