How about the running family commentary group? They (minimum 3 - have seen as many as 8) sit in the stands and offer running commentary on the plays / opportunities of the particular player they came to watch.
"Oh - well - thats not like Jr. to give up a home run when he pitches",
"This next pitch will be better - what ? - the umpire called that a ball? - it has been a strike in every other game this year",
"Too bad he got out - that was a hard hit grounder - if he keeps his elbow in next time it will be a line drive like he usually hits - Yes, he should remember to keep his elbow in next time."
"Auntie, see how Jr. is the first one on and off the field - that is a sign of respect for the game."
"See how his teammate fielded that ball off to the side - he should watch Jr. play and learn how to field the ball cleanly"
"Gee - I wonder why the stands in this area are not full? They seem to be full in the other areas."