Our home record has become almost a negative for us in recent years. Fans show up and expect to win--especially the older ones. We're faithful, but we're not loud, vicious, or crazy like LSU fans (for example). In 2008 we played #1 Texas Tech. Bob Stoops called out the fans during his presser and the fans showed up LOUD--during timeouts, between plays, 1st down, 4th down-- you couldn't hear yourself think. Will it be like that again? Probably.
Notre Dame plays in big games each year and we know they won't be intimidated by playing at Oklahoma. But has an unbeaten Notre Dame played in a hostile environment of 85,000+? No offense intended.. but this Notre Dame team isn't coming in with multiple losses like the past few Notre Dame teams have when visiting USC, Michigan, and the like.
As far as the players responding, hopefully they're not reading too many press clippings. I'm sure after the first few plays, the butterflies will settle and they'll get to business. I think this game will be won with X's and O's and not emotion and crowd participation. But the environment is sure to be electric-- even if it is chilly and in the 40s.