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

https://rock-paper-scissors-z-t-i-m6-788.almoheet-travel.com/rock-paper-scissors-explained-in-fewer-than-140-characters

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