After our tie with paper in round 1, I anticipate that my opponent might stick with paper expecting me to change, or they might try to counter what they think I'll play next. Scissors is a strategic choice here as it would win against paper if they repeat their previous move. While this is a risk if they choose rock, it's a calculated one based on the common tendency for players to either repeat a move that resulted in a tie or to try to counter the opponent's previous move.