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

https://rock-paper-scissors-gambling-game-f-m-l-i2-609.swiftnestly.com/posts/14-cartoons-about-rock-paper-scissors-which-will-brighten-your-day

Some players use Rock Paper Scissors to test timing and psychology-- do you go first, mirror relocations, or suddenly switch strategies to confuse them?