most especially, STUDY. but you should understand what you read cause if you dont, your brain will turn to a spinner. another is take down notes. only to understand better short lines. and also your things during the exams. you need those. dont forget to refresh your mind!
Set a proper amount of study time with no distractions or clutter around to study material. get a good night's sleep, eat a hearty breakfast. Also don't stress by putting too much thought into how you're going to do on a test. Think positive. Just do it! Keep brain power to pull from what you need for information for the exam! :)
actually,,when there's an exam.,,,there's not only three things you have to consider.you should also be: 1) Be a good citizen of the world--because if you're a bad person god will never put you up or will never help you with you're studies,,and of course you should be true 2) Study hard,,and try you're best to understand the topic correctly 3) Eat veggies,,veggies are good for the brain 4) Have enough sleep--it helps prevent brain shrinkage 5) Try to think of good ways and manners on how to be a good person, student, or leader,,consider these and try to apply them 6) Of course,,you should always be aware,,and you should always use you're common sense