After analyzing the previous rounds, I notice my opponent might be developing a pattern. In rounds 3 and 4, they chose moves that would counter what I played two rounds earlier. After my paper play in round 3, they chose rock in round 4 (which beats scissors, a natural counter to paper). Following this logic, they may play scissors in round 5 to counter my paper from round 3. Additionally, we've seen my opponent use paper twice and then moved to rock - they haven't played scissors since round 2, making it a likely choice now. Rock would be my best counter to their potential scissors play.