I think it's cool. What's the 'spirit finger' thing? The shoe thing is very visible!
Everyone (that's not holding their shoes up) holds both hands up and wiggles their fingers along with the aaaahhhhhhhhhHHHHHHHH oooooooo kickoff yell. As the ball is kicked they pull their hands down. It's the same thing the band/flag girls do.
I'd be fine with the shoe idea if everyone did it....but they don't. It's small pockets, and like I said, when it gets cold or when it's inclement weather, they keep their shoes on and join everyone else.
Here's a
link that explains where it came from. I remember the huge debate students had on facebook about this group. I think it makes us look stupid when some are doing one thing, and some are doing another. It leads people to start threads like this and say "What's going on here?" I don't mind it, but everyone needs to do it if it should be considered a new "tradition."