Looking at our previous rounds, there's a notable pattern: whenever I've played rock (rounds 2, 5, and 7), I've either won or tied. The opponent has never beaten my rock moves. In the last round, we both played rock resulting in a tie, and they might anticipate me switching to paper this round to break the pattern. If they're thinking strategically, they'd play scissors to counter that potential paper move. By sticking with rock, I can potentially counter their scissors and maintain my winning streak. Given my current 4-0 lead, making conservative choices that have historically worked well is a sound approach.