it's not even the singing for me, its about being engaged in the match and actively supporting the team. we've seen numerous times the effect a ferocious crowd can have on a game, yet thousands of "fans" are happy to turn up and sit in total silence or just twist on and moan their tits off. we should be RoArInG ThE LaDs on at every possible opportunity.
not sure how you can solve it, tbh. the obvious way is to get like-minded fans together in one area, and just hope the positive energy spreads.