Enter each players name above and click start.
Hand your device to the player on your left.
The player should click on their name to reveal what role they drew (winner, loser or banana).
Once a player knows their role, they should tap the screen again to return to the player select and pass the device to the next player.
Once everyone has done this, the player with the winner role should reveal themselves and click there name to show the others they have won...
The loser and banana should then attempt to convince the winner that they drew banana.
If the winner chooses the actual banana player, both he and the banana win, otherwise the loser wins.