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

https://rock-paper-scissors-gambling-game-k-y-d-z0-993.silverstonebrief.com/posts/what-s-holding-back-the-rock-paper-scissors-industry

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