In Poker, players compete against each other to win chips. The game has numerous strategies for deceiving opponents. It can be a fast-paced and social game that can make for a fun night out, or it can get competitive as the stakes rise. It is a game that appeals to millions of people and has helped inspire research in areas as diverse as computer science, decision making, and psychology.

In a game of Poker, each player has two cards that are dealt face up. Each player may then choose to call, raise, or fold. When a player folds, they are out of the betting and no longer compete for the pot.

Once all players have called, raised, or folded, the remaining players reveal their hands and the player with the highest ranking hand wins the pot of chips. In some variants of the game, a player can put all of his or her remaining chips into the pot — this is known as going all-in.

Expert poker players are experts at interpreting and exploiting information from multiple channels, including eye contact, body language, and physical tells. In addition, they use software to build behavioral dossiers on their opponents and even purchase records of other players’ “hand histories.” These tools are a key part of their strategy. They allow them to extract signal from noise and strategically misinform their opponents, while also protecting themselves from being bluffed by others.