Be considerate. It’s easy to forget that all of those other vehicles have people just like you in them. Treat other cars the same way you would treat pedestrians on the sidewalk. Weaving and cutting off are two of the top complaints from angry drivers. Use your turn signal and don’t break suddenly. Don’t honk unless it’s absolutely necessary and do use the ‘I’m sorry’ gesture when you mess up. This should go without saying, but never, ever use the ‘F-you’ gesture when someone makes you angry. Let cars into your lane when traffic is heavy and be sure to wave at drivers who do the same for you.