Some gamers utilize Rock Paper Scissors to check timing and psychology-- do you go initially, mirror relocations
https://rock-paper-scissors-gambling-t-j-f-k8-480.hexaforgey.com/posts/many-of-the-common-errors-people-make-with-rock-paper-scissors-gambling
Some gamers use Rock Paper Scissors to check timing and psychology-- do you go initially, mirror relocations, or all of a sudden switch techniques to puzzle them?