Poker is a card game played between players and contested for the highest-ranking five-card hand. A standard poker hand consists of a pair of cards and four community cards. The rank of a poker hand is determined by its relative probability in a given situation (e.g., a high-card pair beats a lower-ranking three-of-a-kind). If two hands have the same ranks of cards it is a tie; in this case the prize money is divided equally among the players.
After the flop the dealer puts another card face up on the table which everyone can use. This is called the turn and a new betting round begins. After the turn comes the river which is a fifth community card. Once all the community cards are revealed it is time for “the showdown” which is when players reveal their hands and the player with the best 5 poker hand wins.
During a betting round you can either call or raise your bet. If you call the person who raised before you must place the same amount of chips into the pot as they did (this is called matching). If you want to make a raise you must say “raise” or “I raise” to indicate that you are raising your own stake by the amount that the person before you raised it by.
If you have a good poker hand the other players will be hesitant to call your raises. If this happens it is often wise to fold.