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

https://rock-paper-scissors-gambling-game-q-k-h-q0-505.fairmontdigest.com/posts/rock-paper-scissors-what-s-the-only-thing-nobody-is-talking-about

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