In Texas Hold’em the “dealer button” indicates who is the dealer. The deal moves clockwise between the players.
Texas Hold’em is played with two blinds, the “small blind” and the “big blind”. Before any cards are dealt the blinds must be posted. The player to the left of the dealer posts the small blind and the next player in turn posts the big blind.
Players receive two cards face down (also called holecards), after which there is a round of betting.

The Flop

In this round the player to the left of the big blind is first to act. After that there will be three community cards dealt face up on the board, called the flop, and another round of betting occurs.

The Turn

This betting round the “small blind” starts the action. Then another community card, “the turn” or “fourth street” will be dealt, and another round of betting occurs.

The River

Finally the last community card, “the river” or “fifth street”, will appear on the board. The last round of betting occurs. If no more betting takes place there is a showdown to determine the winner.

The players are allowed to use one or two of their hole cards, but they can also “play the board” meaning that they can use all five cards on the board. The best possible five card poker hand, using any combination of hole cards and community cards, wins the pot. If two or more players show the same hand they split the pot.