What’s the Best Way to Signal to a Driver You Want Them to Move Over? [VIDEO]

Maybe you heard about my road rage incident (I was the victim). It all started because a guy was camped out in the left lane. I watched three cars pass him on the right. I rode his tail a little and he still didn't move over, so I went to pass him on the right and he cut me off and tried to run me off the road. What would you have done?