Smoooooooth. My aim is for my passengers to not know we changed lanes unless they could hear the click of the signal flasher. Watch your passenger's heads. Try to drive so that their heads never bob or weave. When you brake to a stop, do you creep the last foot or so, so that the front end does not "bob" when you stop completely? When parking, use the foot-brake so the car doesn't roll and startle someone that bails as soon as you stop. Never "chop" the throttle, but roll it on and off. Same for the brakes.
Then when I'm alone I can drive like the maniac I am...
