After analyzing the opponent's pattern, I'm seeing they've played "paper" in rounds 3 and 7. There's a reasonable chance they'll play paper again, especially since I've favored rock in previous rounds (4 out of 7 times). While this is risky given the opponent's history of playing rock, I need to change my strategy since I'm behind 1-5. If they're anticipating another rock from me and play paper to counter, scissors would give me the win I need.