Players employ card counting to gain an advantage over the house by tracking the ratio of high to low cards remaining in the deck. This information allows them to adjust their betting strategy and playing decisions based on the perceived likelihood of receiving advantageous cards. When the count indicates a deck rich in high cards, players increase their bets and are more inclined to take aggressive actions, like doubling down or splitting pairs, enhancing their chances of winning. Conversely, when the count is low, they bet conservatively, protecting their bankroll against unfavorable situations. By consistently applying this strategy, card counters can shift the odds in their favor, effectively turning what is usually a house edge into a player edge over time.