Register to Vote. Leo says so.

I've been registered since before I was even 18, because I was going to be 18 by the next election. I was more excited to be able to vote than any other privilege of being "of age" (which, admittedly, there aren't many other than voting). I've never missed an election since, whether they're state ones or the ever important Presidential ones.

Pass this on to people who haven't registered. They're running out of time.