Shuffle tracking involves observing the cards as they are shuffled and tracking the specific cards or patterns in the deck. Players use a combination of observation, deduction, and mental math to identify and track the cards. They typically focus on specific card characteristics, such as suits, values, and patterns, and use their knowledge of the shuffle process to predict where certain cards are likely to be located in the deck. By monitoring the cards as they are dealt, players can then make informed decisions about which cards to play, which to hold, and when to bet or fold.