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

https://rock-paper-scissors-gambling-game-e-f-q-x8-732.pinehavenscope.com/posts/why-adding-a-rock-paper-scissors-casino-to-your-life-will-make-all-the-impact

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