All of these things divert your attention from driving, and can put you and others at risk for accidents. If you need to do anything that could inhibit your ability to focus on the road, simply pull over. If you're half asleep, it will be difficult for you to concentrate on driving. If you catch your eyes starting to close, or you drift, this is a sign you shouldn't be on the road anymore. Find a rest stop or a hotel so you don't endanger yourself or others. This will help you to be continuously aware of the drivers that are beside and behind you. Make sure your mirrors are properly positioned to minimize blind spots. Keep an eye out for all traffic notifications, such as speed limit, safety, construction, and hazard signs. These will help guide your driving and lower your risk of accidents.

Summary:
Eliminate distractions like phones, loud music, or eating. Pull over if you're tired. Check your mirrors regularly. Follow posted traffic regulations.