I analyzed the opponent's previous moves: round 1: paper, round 2: rock, round 3: paper, round 4: scissors, round 5: scissors, round 6: paper, and round 7: rock. This pattern fits a repeating cycle of five moves: paper, rock, paper, scissors, scissors. Following that pattern, the opponent's round 8 move should be paper. Since scissors beats paper, I choose scissors for round 8.