Not one person has mentioned the history of the "True north!" shout out during the national anthem?
In summary: Before the first ever preseason game, one fan put together a twitter campaign to get people to shout "TRUE NORTH!" extra loud during the line "The true north, strong and free" in our national anthem. It was fairly successful at the time, and by the second pre-season game it was staggering. It's part of our oral tradition, and other teams around the league immediately began copying it themselves.
A good example:
http://www.youtube.com/watch?v=C_si7I0xA1Y
the shout-out is at 0:38.
Related, we also have one of the best anthem singers in the league, who besides being drop-dead gorgeous (/swoon) has the decency to sing the national anthem straight up, without throwing in all this operatic crap or taking a verse and a half off.
As well, since I'm starting to join the "don't get too attached to Claude Noel" crowd, this should bring you up to speed in his soundbyte greatness. Between that and his penchant for sucking lozenges by the bucket during stressful times in-game, that's all you need to know.
http://www.youtube.com/watch?v=2Kls-CUYnIc