The first round starts clockwise from the player who put down the highest double starts and players then take turns in a clockwise direction. For instance, a 6|6 is the highest tile compared to a 4|4, which would be a lower double. The player starts their personal train by putting their first domino to match the "engine". Your goal is to extend the train by adding more dominoes from your hand until you either have to draw or can't play.