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

https://rock-paper-scissors-gambling-k-j-g-m4-997.clearminster.com/posts/the-most-negative-advice-we-ve-ever-received-on-rock-paper-scissors-gambling

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