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

https://rock-paper-scissors-g-q-m-e6-381.juniperbrief.com/posts/what-a-weekly-rock-paper-scissors-project-can-change-your-life

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