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

https://rps-gambling-j-b-m-c4-320.lakeviewbrief.com/posts/10-startups-that-are-set-to-revolutionize-the-rock-paper-scissors-industry-for-the-better

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