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

https://rock-paper-scissors-c-i-c-c6-157.westhavenscope.com/posts/learn-what-rock-paper-scissors-casino-tricks-the-celebs-are-using

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