Acknowledge fellow drivers
Remember that even though you’re in a car, fellow drivers can likely still see you. If you let someone merge in front of you, or if someone lets you merge, just acknowledge the action. Jacqueline Whitmore, etiquette expert and founder of The Protocol School of Palm Beach says, “motion with your hand to let someone go in front of you, or wave and mouth the word ‘thank you’ if someone lets you go in front of them.” Here’s how to handle 11 scary driving situations.
Use the shoulder for emergencies only
It is illegal in some states to use the shoulder for anything but emergencies. Never use the shoulder to weave through traffic. Not only could you get a ticket, but you could also be blocking the shoulder from emergency vehicles that need to get through traffic.