Poker is a card game that can be played by two or more players and involves betting in increments. Each player has their own stack of chips, and each time it is their turn to act they can either call (put into the pot the same amount as the previous player) or raise. The player who puts the most chips into the pot wins the round.
The game is usually fast paced and the players are constantly raising and checking their cards against one another to figure out the strength of their hands. They also try to pick up on tells, or nervous habits that other players display such as fiddling with their chips, rubbing their nose, etc.
The game is very popular and is now played all over the world. It is believed that it originated in the sixteenth century in culturally French territory as a bluffing game called Pochen, which eventually evolved into the current version of Poker that is used today. It is a great skill-building game, as it forces you to weigh your chances of winning against the probabilities that you will be caught bluffing or just plain losing. This is a very valuable life lesson that can be applied in many other areas of your personal and professional lives.