After losing round 1 where my opponent chose scissors, I'm selecting rock for round 2. This is a tactical adjustment since rock beats scissors. My opponent might repeat their winning move (scissors), in which case I would win. If they anticipate I'll choose rock and switch to paper, I would lose. If they choose rock expecting me to switch to scissors, we would tie. Based on the limited pattern data available after just one round, rock seems to be a reasonable strategic choice.