With each hand being dealt, the first and third cards dealt from the shoe make up the Player hand, and the second and fourth cards, the Banker hand. Once the cards are distributed, the dealer announces the point count for each hand.
If the total of one of the two hands, each made up of two cards, is 8 or 9, the hand is called a Natural, and no other cards are dealt for the Player hand or the Banker hand. Otherwise, a third card may be drawn, as the case may be, for the Player hand or the Banker hand (tableau en PDF)
Some games enable you to place additional bets. Ask the dealer about your options.