And "becoming active" can be as simple as starting to call up local clubs, meetups, universities, whatever, and asking to speak about how you can help them in x or y if you're elected. It can be talking to your neighbors or getting in with local bars and bands (depending on the issues your position will preside over). The Los Altos city council had a seat that was won over and incumbent with a difference of like 7 votes last election, these local elections are very accessible.