After evaluating the opponent's moves (paper, scissors, paper, rock, rock, scissors), I noticed that each move appears twice, indicating a lack of clear bias toward any one move. In such a case, a safe approach is to try to disrupt any unexpected pattern by switching my expected move. I've decided to choose paper, which can potentially beat rock (and rock might be favored if the opponent expects me to pick something else), thus providing an opportunity for a win. Given the details, I'm selecting paper for round 7.