If your school has a library, that might be one good place to conceal your presence~ If someone finds you, and you seem busy researching or something, they might just leave you alone~
I have found looking busy, when you actually have nothing to do, is a good way to avoid being called on for various tasks you don't want to do~
For instance, finding a clipboard with some minor document and walking back and forth from a couple locations with it~
Any case, Imma prep up for work then. Got to burn 8 hours in work, hiding from people. Thanks for the suggestions!