You’re looking more for a disruptive or strategic vote.

As for how to strategically vote: look at those preference flows from earlier & pay close attention to the votes per candidate at each stage and how close some might be. Your goal is to try and push one of those last-placed candidates in one of the elimination rounds ahead of 2nd last through your preferences (easiest is to give them your 1 vote).

The ideal outcome would be to get certain preference flows activating earlier to try and alter who makes it to the final two or three.