Most of us are well aware these days of the dangers of drinking and driving. While it can feel awkward to call a cab or leave your car behind after an evening of imbibing, if there’s any doubt that you’re not 100% okay to drive, don’t take the risk.

Drinking and driving cases are becoming more difficult to manage.¬†Data from the National Highway Traffic Safety Administration (NHTSA) shows that there are more than 300,000 cases of drinking and driving every day. Don’t be a statistic.

If you are pulled over – sober or not – there are several tests you may undergo to prove whether or not you’re intoxicated. Many of us are familiar with breathalyzer tests or saying the alphabet backwards, but have you heard of the Nystagamus Test? Or the Head Tip test? Not every test an officer asks you to perform is going to be a standardized measure, but if you’re unable or unwilling to attempt the exercises, be prepared to be taken in to the police station for follow-up procedures.

Read on for the three standardized field sobriety tests as well as less common exercises that you may experience if you’re ever pulled over for driving while intoxicated (DWI).