Poker is a game of cards where players bet on the strength of their hand in order to gain control over the outcome of a round. Although poker is largely a game of chance, it does involve some skill and psychology.
The game begins when players make forced bets, usually an ante and/or a blind bet. Cards are then shuffled and dealt face up or down in accordance with the rules of the particular game being played. Players then place their bets into a central pot and the player with the highest hand at the end of the betting rounds wins the pot (i.e. all the bets made in that round).
It is often better to play a strong value hand than it is to try and outplay opponents, especially at low stakes where your opponents will tend to overthink their hands and arrive at wrong conclusions. However, it is also important to be able to read your opponents, and their tells, in order to pick up on subtle clues as to whether they are holding a good or bad hand.
If your opponent raises you, it is usually a good idea to call them. This will help you avoid giving them information about your hand and it will generally improve the quality of your chances of winning the hand. However, if you have an excellent hand and you are confident that it can beat theirs, you may wish to raise. This will increase your odds of winning the hand, but it can also cost you more money than simply calling.