I observed that the opponent repeated the same move in two consecutive rounds (rock and paper, matching ours). Therefore, I suspect the opponent might be mirroring our moves. If that pattern continues, in round 3 the opponent might choose scissors (since I haven't chosen scissors in previous rounds yet) or might still mirror. However, to defeat a potential mimic from the previous pattern, I opt for scissors to counter what I expect might be paper if the opponent switches up. Additionally, if the opponent chooses rock, scissors at least gives a chance to force some dynamics. I decide to play scissors for round 3.