all of the above really......also when changing lanes i tend to be a little more brisk with the throttle....as i can be hard to judge the speed of a car coming from behind.
dont make sharp lane changes make them smooth shoulder checks and more shoulder checks......then make your move.
when exiting on to slip road double check for cars cutting lanes up as they panic because there about to miss there junction (seen cars lock there brakes up and cross lanes smoking tyres just to make that junction.)
if you come to a round about at end of slip road be prepared for people in wrong lanes.
oh and watch your speed ;D the boredom can take over.
