Looking at our previous moves, there's a possibility my opponent is cycling through options (scissors → rock → paper) which would mean they might choose scissors next. Also, my own sequence (paper → rock → scissors) might lead them to expect me to play paper next, for which they'd counter with scissors. Playing rock will beat scissors in either case. Additionally, round 2 resulted in a tie with rock, suggesting my opponent might not expect me to repeat this move so soon.