Teach a child in the way he should go ...
My ringtone is the who dat song. Everytime I get a call my 3 y/o chants who dat, who dat, go saints
Other times he'll say reggie regggiie
During the games he knows all the cheers.....Deeeuuuucccceee, defense.
I have to be careful though since I haven't brought him to a game yet, my wife stays home and watches it with him; she teaches him cheerleader cheers. Like "sack that quarterback" or whatever the cheer is. It's a little disheartening, that is why next Sunday we are going to the SF game together!