Are you driving the wrong way? Did you take a wrong turn somewhere? You should be going the opposite direction, right? No worries, hang a U-turn and correct the problem.
Switch on the turn signal that indicates the direction of your turn.
Check for oncoming traffic.
Make sure that a U-turn is not illegal in this location. U-turns should not be made across a double yellow line or where signs indicate that they are against the law.
Be sure that you have enough room to make the turn without hitting the curb or any parked cars.
Press the gas lightly while turning the steering wheel as far as it will go in the direction you want to turn.
Lift your foot off the gas and coast through the turn. Give gas as needed.
Enter your new lane and begin driving.