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

https://rock-paper-scissors-gambling-game-z-b-l-y9-403.clarionvale.com/posts/10-quick-tips-about-rps-gambling

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