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

https://rps-gambling-u-l-p-k2-229.clearminster.com/posts/what-rock-paper-scissors-you-ll-use-as-your-next-big-obsession

Some gamers use Rock Paper Scissors to evaluate timing and psychology-- do you go first, mirror relocations, or suddenly switch strategies to confuse them?