<p>Hello please tell me how to enroll in a summer class at GMU. I am not a GMU student, so is the chance of getting a seat in an upper level computer science class low?</p>
<p>I know little about this but I can try to help 
I’d recommend you to call their office and I’m sure that if you call earlier, maybe perhaps you can get a spot. Don’t wait till last minute. Just contact them and let them know about what you’d like to do. Best of luck!</p>