Yes, you can count cards while playing Blackjack, but it requires focus, skill, and subtlety. Card counting involves tracking the ratio of high to low cards remaining in the deck to gain an advantage. You'll adjust your bets based on the count, betting more when the odds are favorable. However, casinos are aware of card counting, so it’s important to be discreet and avoid obvious patterns in your betting. Practicing card counting and Blackjack strategy is essential to do both effectively without drawing attention. While card counting gives you an edge, it's not foolproof, and you still need to manage the risks and the casino's countermeasures.