I vote. I feel it's a civic duty. Not a "have to" but a "want
  to". Sometimes I neglect to vote. WHO I vote for and what things
  I vote for I sometimes decide beforehand, sometimes I don't.
  Depends. When it comes to President, it doesn't matter, but
  things like local elections _does_ make a tangible difference,
  so I try to get educated on that stuff a little more.