Poker is a card game played by two or more players and involves betting between rounds. The highest ranking hand wins the pot. The first player to reveal his or her cards begins each betting phase, which may last one or more betting intervals depending on the rules of the particular game being played. Players may choose to call, raise or fold their hand during each betting phase.

Each player must place a fixed amount of chips into the pot before being dealt cards (the number of chips required varies by game). These mandatory bets are called antes, blinds or bring-ins.

After the players have all received their 2 hidden cards (called their hole or pocket), there is a round of betting that begins with the player to the left of the big blind. 3 more cards are then dealt face up at the center of the table, which is known as the flop. Another round of betting begins with the player to the left of the dealer.

During the betting phases, it is best to bet with strong hands and bluff when necessary. This will force weaker hands out of the game and raise the value of your pot. It is important to learn how to read your opponents, which includes observing their body language, facial expressions and even their breathing to see whether they are telling you something. Practice and watch experienced players to develop quick instincts.