In poker, each player puts money into the pot voluntarily in order to win a hand. This money can be in chips or cash, and the game consists of rounds of betting. Each player has a choice of actions to make, depending on whether the expected value of the bet is positive or negative, and on other strategic considerations such as bluffing and game theory.
There are many different poker variants and betting procedures, but the basic principles are the same: the dealer shuffles the cards, the player on his right cuts them, and then each player is dealt two cards. After the first round of betting, players may choose to discard one or both of their cards and take new ones from the top of the deck. After this another round of betting takes place, and the player with the best hand wins the pot.
You can say “call” to match the highest bet that has been placed so far in a particular hand. You can also say “raise” to add more money to the pot. If you decide to raise, the other players will either call your new bet or fold.
It’s a good idea to practice your game with friends or play for real money in small stakes online. Invest your time into studying game strategy, and learn the math behind the game so that you can understand the small edges that can be exploited to make a profit.