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

https://rock-paper-scissors-gambling-game-w-l-i-i8-351.evergrovio.com/posts/15-gifts-for-the-rock-paper-scissors-gambling-game-lover-in-your-life

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