Looking at the opponent's recent moves, they've chosen scissors in both rounds 5 and 6. This could indicate a preference for scissors, or they might be trying to establish a pattern. If they continue with scissors, rock would be the optimal counter. Even if they anticipate me switching to paper (continuing my own pattern from previous rounds) and choose scissors to counter that, rock would still win. Additionally, I've won with rock in round 6, which might psychologically influence me to stick with what worked last time.