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

https://rock-paper-scissors-s-m-c-m2-697.urbanvellum.com/posts/don-t-make-this-mistake-with-your-rps-gambling

Some players utilize Rock Paper Scissors to check timing and psychology-- do you go initially, mirror relocations, or suddenly switch strategies to confuse them?