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

https://rock-paper-scissors-gambling-k-y-p-z5-822.cloudhinter.com/posts/the-often-unknown-benefits-of-rps-gambling

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