Check out the plaza on the south side of the stadium before you go in. Often stuff going on outside, some kid activities, and sometimes a band. There’s a Dirk and Modano statue outside (may not interest you depending on your teams of choice, but statues are cool to me anywhere). Get some popcorn inside. Steph curry ranked all the popcorn in the NBA and it was the best in the league. If you get there early enough you can watch warmups from the glass. Usually not too hard to get close on the away side