I'm sure you all know the game, but in case you do not, here are the official rules:
Each player selects either "Rock," "Paper," or "Scissors." The other player will not see your selection until both players have selected a weapon. Once each player has selected, the winner will be determined as follows,
Rock beats Scissors (by breaking it)
Paper beats Rock (by enveloping it)
Scissors beats Paper (by cutting it)