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

https://rock-paper-scissors-w-u-c-r8-886.currentvale.com/posts/five-essential-tools-everyone-in-the-rock-paper-scissors-gambling-game-industry-should-be-making-use-of

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