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

https://rock-paper-scissors-x-u-v-v6-446.clearminster.com/posts/13-things-you-should-know-about-rock-paper-scissors-gambling-that-you-might-not-know

Some players utilize Rock Paper Scissors to evaluate timing and psychology-- do you go first, mirror moves, or suddenly switch strategies to puzzle them?