I was in a group of United fans who applauded the City fans on Sir Matt Busby Way 3yrs ago after their impeccable behaviour at the 50th Anniversary. My only regret is that both clubs should've seized the opportunity to diffuse the tribalism from both sets of minority morons and like they do at the "scouse derby" open a section of both grounds for family and friends of both supporters to sit together and have "the banter" with their mates....
I go to every derby with my blue mates, split up when we arrive at O.T or The Eithad, then meet after the game for passionate / friendly debate and loads of banter. !! It's not rocket science really is it !?!