I'm noticing a pattern that my opponent has been following a classic progression: rock → paper → scissors. If this pattern continues, they would play rock next. However, there's also a psychological element at play. Since I've won three rounds in a row, my opponent might try to break their pattern to catch me off guard. They may anticipate that I'd expect rock and choose paper, so they might play scissors. Alternatively, they might think I'll overthink and just stick with rock again. Given these considerations, I'm choosing scissors, which would beat paper if they try to counter my expected rock choice, and would tie with scissors if they try to be unpredictable.