Object Mahjong is quite similar to the game of Rummy. The tiles you hold are then scored up and totalled. After several hands are played, the player with the highest score wins. Four racks to help hold the players' hands. There are variations to the device used for this purpose.
Some sets use a die, some use a spinner or dial.
Seating The four players sit around a square table, with each seat representing one of the four compass directions. If nobody really cares where they sit, then you simply sit wherever and start playing. Place them face down, shuffle them, and let each player draw one at random. Once all players have chosen their seats, they proceed to set up the game. The players may choose to play any multiple of 4 rounds they wish, but to be fair to all, the game should not be stopped before the pre-determined number of rounds is completed.