Some gamers utilize Rock Paper Scissors to test timing and psychology-- do you go first, mirror moves

https://rock-paper-scissors-gambling-game-u-e-j-t7-115.rivetgarden.com/posts/the-under-appreciated-benefits-of-rps-gambling

Some gamers utilize Rock Paper Scissors to test timing and psychology-- do you go first, mirror moves, or suddenly switch methods to confuse them?