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

https://rock-paper-scissors-gambling-game-w-k-r-b1-590.alderbrief.com/posts/the-reasons-to-focus-on-improving-rock-paper-scissors

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