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

https://rock-paper-scissors-gambling-k-c-k-h4-956.slatecurrent.com/posts/the-top-5-reasons-why-people-are-successful-at-the-rock-paper-scissors-gambling-game-industry

Some players use Rock Paper Scissors to test timing and psychology-- do you go initially, mirror moves, or suddenly switch methods to confuse them?