I've observed my opponent's pattern - they've gone paper, rock, scissors, rock in the first four rounds. If they're continuing with a pattern, they might choose scissors next. However, I suspect they might anticipate me trying to counter their pattern and choose rock or paper instead. Given that my opponent has chosen rock twice already, including in the most recent round, there's a decent chance they'll switch to paper. I'll choose paper, which would tie against their paper or win against their rock. This breaks my own pattern as I haven't chosen paper since round 3, making me less predictable.