Poker is a card game that requires skill and strategy to win. There are many variants of the game, including Texas Hold’em, which is often played in Las Vegas and other major casinos. The object of the game is to form the best possible five-card hand. Players compete for the pot, which is the sum of all bets made by the players during any one betting interval.

Each player is dealt two cards face down, which are known as his hole cards. A series of betting intervals follows, with each player putting in chips representing money into the pot equal to that of the player to his right. After the final betting interval, the player who has the highest-ranking hand shows it and wins the pot.

A player may choose to Check (to remain in the round and not put in any more money), Call (match the bet of the player to his right), or Raise (aggressively increase the amount you bet). A player who raises the stakes by a considerable amount is called an All-in.

The most important part of poker strategy is knowing how to read your opponents’ tells. These are unconscious habits that reveal information about a player’s hand. They can include facial expressions, body language, and even posture. The most common tells are a change in posture and the shaking of the hands.