NDSU needs to build up it's culture of fandom for basketball. Compared to football there are no traditions or practices that are followed regularly. There's nothing built up outside of the game that pulls people in and keeps them coming back.
The most interesting step I saw towards something like that this year was the student competition between dorms at the one game. Do more shit like that. Brought in a full section of students who looked like they had fun at the game and improved the game day atmosphere for everyone. Do a costume night around Halloween like countless other schools do, or anything else to build the student attendance. I think if you started there the rest would follow.
Big part of this would be fix the damn scheduling. Stop having so many of the big match up or rivalry games when classes are out or when students are less able to attend.
And get a better intro video. This year's sucked goat scrotum.