A few things to check

Graduates - Are your gown and hood (colours) on straight?
 
Is your trencher (cap) on straight, not sitting on the back of your head?
 
Ladies - Are your hair and make up as you’d like them?
 
Gentlemen - Is your tie straight if you are wearing one? If you would like to have photos with your family, please make sure they are all ready and with you.
 
Full length mirrors are available to check your appearance if you need to.