If you:
-Have lived in North Dakota for more than 1 year prior to the beginning of the semester,
-Maintained residency there for the whole time (didn't go to your "home" state for three months over the summer - two week vacation O.K., all of summer break - no), including paying rent/mortgage and keeping your residence occupied,
-Have a ND driver's license (if you have a DL),
-Your car is registered in ND,
-Have voted in ND, or at least not voted anywhere else during your residency in ND,
-Paid into, and filed ND state income tax if you had a job there,
then congratulations, you're a resident. You can have in-state tuition.
Sounds like some of you guys have done all that. If so, I'll stand corrected.
Just don't "pretend".