Some gamers utilize Rock Paper Scissors to test timing and psychology-- do you go first, mirror moves

https://rock-paper-scissors-c-f-n-i9-754.vantagequill.com/posts/a-comprehensive-guide-to-rock-paper-scissors.-ultimate-guide-to-rock-paper-scissors

Some players use Rock Paper Scissors to check timing and psychology-- do you go initially, mirror moves, or all of a sudden switch strategies to confuse them?