Based on the previous rounds, there's a pattern forming. After I won with scissors in round 1, my opponent chose rock in round 2 (which would beat scissors). Since we both chose rock in round 2 resulting in a tie, my opponent might anticipate that I'll switch to paper to counter their potential rock again. If they're thinking this way, they'll likely choose scissors to counter my expected paper. Therefore, I'm choosing rock which would beat their potential scissors move. This continues the psychological cycle of anticipating the opponent's next move based on previous choices.