I'd use any opportunity I could, to speak to people about the way society has been engineered and the way the world really works and how pretty much everything we've been taught and believe is a lie. Then I'd listen to some of the people make comments about tin foil hats and reptilians while others remain quiet while they think about what I said for a moment before dismissing it because they know there is no way something so big could have been going on for so long without the public knowing about it. Some might even tell me that if I don't vote, I can't complain or that I should stop speaking until I have a fully formed plan in my head of what would replace the current system I hate so much.
After that, I'll take a breath and wait for my next opportunity.