In casino blackjack, the dealer faces one to seven players from behind a kidney-shaped table. Each player plays his hand independently against the dealer.
At the beginning of each round, the player places a bet in the "betting box" and receives an initial hand of two cards. The object of the game is to get a higher card total than the dealer, but without going over 21 which is called "busting" or "too many." (The spot cards count 2 to 9; the 10, jack, queen, and king count as ten; an ace can be either 1 or 11.)
The player goes first and plays his hand by taking additional cards if he desires. If he busts, he loses. Then the dealer plays her hand. If the dealer busts, she loses to all remaining players. If neither busts, the higher hand total wins. In case of a tie, no one wins - the hand is a "push." It is possible for the dealer to lose to some players but still beat other players in the same round.
After receiving his initial two cards, the player has four standard options: he can "Hit," "Stand," "Double Down," or "Split a pair."
Hit: Take another card.
Stand: Take no more cards, also "stick" or "stay".
Double down: On his first two cards, the player may "double down," i.e., "double" his bet and receive only one card face "down." To do this he moves a second bet equal to the first into the betting box next to his original bet.
Split a pair: If his first two cards are a "pair," meaning two cards of the same value, the player can "split the pair." To do this, he moves a second bet equal to the first into the betting box next to his original bet. The dealer splits the cards to create two hands, placing one bet with each hand. The player then plays two separate hands.