Some gamers use Rock Paper Scissors to evaluate timing and psychology-- do you go initially, mirror moves

https://rock-paper-scissors-gambling-game-o-x-o-v8-032.zenbloomer.com/posts/there-s-enough-15-things-about-rock-paper-scissors-casino-we-re-tired-of-hearing

Some gamers use Rock Paper Scissors to test timing and psychology-- do you go first, mirror relocations, or all of a sudden switch methods to confuse them?