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

https://rock-paper-scissors-t-y-n-r0-263.meridiannest.com/posts/the-ultimate-glossary-on-terms-about-rock-paper-scissors

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