Some gamers use Rock Paper Scissors to check timing and psychology-- do you go first, mirror relocations

https://rock-paper-scissors-gambling-game-o-x-o-v8-032.zenbloomer.com/posts/15-funny-people-working-secretly-in-rock-paper-scissors-gambling

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