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

https://rock-paper-scissors-gambling-x-v-r-y7-798.capitaljays.com/posts/five-people-you-should-know-in-the-rock-paper-scissors-industry

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