These are jokes, and not intended to be taken seriously. Please view the site disclaimer.
Honk and wave to strangers.
Write "X – BURIED TREASURE" in random spots on all of someone’s roadmaps.
Insist on keeping your car windshield wipers running in all weather conditions "to keep them tuned up."
Specify that your drive-through order is "to go."
Buy a large quantity of orange traffic cones and reroute whole streets.
Leave your turn signal on for fifty miles.
Vary your vehicle’s speed inversly with the speed limit.
Roll down the windows and blast talk radio. Attempt to head bang.
At stop lights, eye the person in the next car suspiciously. With a look of fear, lock your doors.
Two words: Chicken Suit
Write the works "Help Me" on your back window in red paint. The more it looks like blood, the better.
Have conversations, looking periodically at the passenger seat, when driving alone.
Laugh a lot. A whole lot.
Stop at the green lights.
Go at the red ones.
Occasionally wave a stuffed animal/troll doll/Barbie out your window or sunroof. Feel free to make it dance.
Eat food that requires silverware.
Pass cars, then drive very slowly.
Sing without having the radio on.
Honk frequently without motivation.
Wave at people often. If they wave back, offer an angry look and an obscene gesture.
Ask people for Grey Poupon.
Let pedestrians know who’s boss.
Look behind you frequently, with a very paranoid look.
Restart your car at every stop light.
Hang numerous car-fresheners in the rear-veiw mirror. Talk to them, stroking them lovingly.
Throw burning things in the windows of smokers who throw their butts out the window.
While stopped at at light, urinate out the window/sunroof onto other cars.
Paint your car with occult symbols.
Keep at least five cats in the car.
Have some passengers have wild noisy sex.
Cheer for firetrucks. Boo ambulances. Moon police cars.
Stop and collect roadkill.
Stop and pray to roadkill.
Get in the fast lane and gradually … slow … down … to a stop. Then get out and watch the cars.