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

https://rock-paper-scissors-n-p-p-r1-891.clarionvale.com/posts/the-most-significant-issue-with-rock-paper-scissors-gambling-game-and-how-you-can-repair-it

Some players use Rock Paper Scissors to test timing and psychology-- do you go first, mirror moves, or unexpectedly switch strategies to confuse them?