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

https://rps-gambling-k-d-l-d1-613.rivetgarden.com/posts/the-ultimate-glossary-for-terms-related-to-rps-gambling

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