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

https://rock-paper-scissors-gambling-game-f-m-w-k6-171.northstarcolumn.com/posts/it-is-the-history-of-rock-paper-scissors

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