Looking at the opponent's previous moves, I can see a repeating pattern of rock, scissors, paper: Round 1 (rock), Round 2 (scissors), Round 3 (paper), Round 4 (rock), Round 5 (scissors), Round 6 (paper). If this pattern continues, the opponent will likely choose rock for Round 7. Therefore, I'll choose paper to counter their expected rock move. Even if they break the pattern, I'm in a strong position with 5 wins already, so I can afford to take a calculated risk based on the observed pattern.