The ultimate key to being an impostor is unpredictability. Among Us is a lot like poker. If the crew suspects a particular pattern being followed by a particular crewmate, they will catch on. Not long after, that vent-accusation strategy will be a clear-as-day tell. A good impostor will mix his approaches after every discussion so that he doesn't seem like a guy with a devious plan.

If the impostor used the argument "you're trying to vote me off" at the first discussion, then maybe pull off "self-report" at the second discussion. If at the first discussion, the impostor's trying to vote someone off, then at the second, he should suggest skipping the vote.