Never doubt the wisdom of Homer Simpson. A genius, he, unappreciated by his peers, presciently revealed the ultimate secret winning strategy to winning rock-paper-scissors. He has been roundly mocked, but it is Homer who will have the last laugh:
According to New Scientist magazine, the way to win is to start with scissors.
Research shows that stone, also called rock, is the most popular of the three possible moves in the game.
That means that your opponent is likely to choose paper, because they will expect to you to start the game with stone.
By going with scissors, you achieve an early victory.
Fools! little do they know that we know that they know that rock is the most popular, so by choosing scissors, they render themselves vulnerable to rock! Bwahaha!