Based on the pattern so far, I've noticed that I've played paper twice (rounds 1 and 3) and rock once (round 2). The opponent might expect me to continue favoring paper or try scissors since I haven't used it yet. If they anticipate me playing paper again, they'll likely choose scissors to counter. By playing rock, I can beat their potential scissors play. Additionally, looking at the opponent's pattern (rock, scissors, paper), if they continue cycling through options, they'd choose rock next, which would result in a tie with my rock choice - still better than losing.