Poker is a card game in which players bet on the strength of their hands (of five cards) with all bets going into a pool to be won by the player who has the highest hand at the end of the betting round. Players may also bluff, which often leads to a high win percentage.

A key strategy is to play in position. This allows you to see your opponents act before making a decision and can give you key insights into their hand strength. You should also learn to read your opponents – this can be achieved through subtle physical tells such as eye movements, idiosyncrasies, hand gestures and betting behavior.

When playing a premium hand, such as a pair of Kings or Queens, it is important to bet aggressively. If you do not, the other players will either call your bets or, if you check to them and they have a superior hand, they might raise, which can cost you the pot.

If you have a marginal hand, such as a straight or a flush, you should bet less frequently and only if you think the other players will fold. This will keep you from chasing your losses and ultimately burning your bankroll.