I try to drive in the right lane if possible. Even if there is 3 or 4 lanes. Though it's usually not possible because of the amount of cars entering/exiting. I like to go fast (of 10+ hours of highway driving last week, I was not passed once other than because of the flow of traffic), so in normal interstate traffic I end up in the left lane, constantly passing cars. If a faster car comes up behind me, I get out of their way, usually before they reach me if possible.
