Do make sure you have pencils or pens and erasers for the exam. Do look through all the questions before beginning. Do answer all the questions you know first and go back for the stumpers. If you are not prepared, it is also a good idea not to panic. Do the best you can, answer the questions you do know, and most importantly, make a personal note to prepare yourself better next time.
Some students feel tests are a nuisance.
Others like to think of tests as challenges and also an occasional break from a lecture or discussion. However you think of tests, remember that in essence they are only a tool to measure what you have learned up to that point. If you are not learning what your instructors feel you should, talk to them and find out why. Learn from your test. If you do, the next test will probably show an improvement.