readsJokers visible in exposures are jokers not in racks. Recount the eight every few turns and you will know who is playing natural.

readsWhen a player's discards are all one suit, they are not in it. When their discards avoid one suit entirely, they are.

readsThe player after you gets first claim on everything you throw. Learn their hand fastest; they tax you the most.

readsReread the whole pond when the wall hits twenty. Your memory of turn two is wrong.

readsThe blind passer told you something too: nothing in their hand was expendable. They are set on a hand and probably close.