We were in uniform, in a section full of Wyoming fans and our leadership had us doing pushups in the stands or concourses anytime USAFA scored.
Didn't hear a bad word or see any negative reactions. Maybe it's different attending as a BYU visitor, I've never done a BYU away game there.
But that was also back in 2010, so more recent than anyone here has gone there as a BYU fan. Hard to assume exactly how a stadium will be based on experiences 15+ years ago
You'd probably have better luck asking on a Boise St or Utah St board or someone who has played at Wyoming in the last decade. Opinions here are going to be fairly out of date