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

https://rps-gambling-r-j-n-h9-865.slatecurrent.com/posts/three-reasons-why-three-reasons-your-rps-gambling-is-broken-and-how-to-repair-it

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