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

https://rock-paper-scissors-z-u-q-j7-164.northcrestbrief.com/posts/20-trailblazers-setting-the-standard-in-rock-paper-scissors-gambling

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