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

https://rock-paper-scissors-gambling-q-d-e-g7-218.laurelcurrent.com/posts/five-things-you-don-t-know-about-rock-paper-scissors-gambling

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