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

https://rps-gambling-g-q-t-t4-197.readspirex.com/posts/seven-reasons-why-rock-paper-scissors-casino-is-so-important

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