Everyone is nervous of the day of the GMAT. You have butterflies in you stomach as this is one of the important days for your career. There are certain things which if kept in mind can make your GMAT ordeal smooth and rewarding.
Also, there is a set way in which test takers must behave at test center. This video by GMATcoaching.com gives the test takes a clear idea of what to do on the day of GMAT.