Looking at our game history, there's been a mix of ties and wins for both sides. My opponent has chosen paper in the last round and has shown a tendency to repeat scissors (rounds 1, 3, 5). Since I'm leading 2-1, I'll choose paper for this round anticipating they might go with rock to try countering what they might expect me to play (scissors). If they continue their pattern of playing scissors frequently, we'll tie, but if they switch to rock thinking I might play scissors, I'll win and extend my lead.