Show and Muck is a new game feature wherein players can hide or show their cards.
How does it work?
If everyone folds except you and the cards are Mucked, nobody sees what you had. If you select to Show, then the cards will be visible to everyone.
This is only applicable when everyone folds their hand, and you win the pot. If the hand comes down between you and another player, both hands are automatically shown to see who the winner was.