Poker is a card game that has many variants, but all share the same basic aspects: Players put down money to bet during a round, and are then dealt cards from a standard 52-card pack. The goal is to have the best 5-card hand at the end of the round. The player with the best hand wins the pot, which contains all of the bets made during that round.
Each round starts with 2 mandatory bets (called blinds) being placed into the pot by the two players to the left of the dealer. These bets create an incentive to play. The first player to act places a bet, or raises it. The other players can choose to call the raise or fold their hands. Players may also bluff by betting that they have the best hand when they don’t, hoping to convince other players to fold their hands and give up the chance to win the pot.
Once the initial round of betting has ended, a fourth card is dealt to the table, called the flop. This begins a new round of betting, with the player on the button starting the action. The button moves one spot clockwise after each hand. Depending on the rules of the game, the cards can be re-shuffled once before another deal.
You can say “raise” to add more of your own chips to the betting pool after each bet. You can also say “call” to match the last bet and place your chips into the pot.