Most people don't care what Gay people do, who they marry, or what they do in their homes. They have their views on abortion, but they're not about to tell someone else what their morality should be.
Many, many people keep their politics to themselves in the everyday world.
So, in summary, the whole "Liberal or Conservative" thing is meaningless on a day to day basis. You attempt to judge people when you really have no idea who they are as a person.