Poker is a card game in which players wager chips or cash in order to win the pot. Unlike most casino games, there are no initial forced bets; money is placed into the pot voluntarily by players who believe the bet has positive expected value or are trying to bluff other players for various strategic reasons. The outcome of a particular hand of poker is determined by chance and the decisions made by players based on probability, psychology, and game theory.

Before cards are dealt players must place an amount of money into the pot (this is called an ante). Once all players have antes in, betting begins in clockwise order. Players can say “call” to make a bet equal to the last person’s raise or “raise” to increase their own bet. They can also choose to fold, meaning they are leaving the hand and sacrificing any bets they have already made.

In poker, as in life, it is important to weigh risks against rewards. Playing it safe may get you to the final table but it is possible to lose a lot of money if your opponents catch on that you don’t like to take risks and try to bluff against you.

It is important to be able to read other players. Watch them for tells such as eye movements, idiosyncrasies, hand gestures and betting behavior. Ideally you should also be able to pick up on non-verbal cues such as flinching or smiling.