.
Get something Saints or Cards and wear that + body paint.
Bonus points if you wear St. Louis Cardinals swag.
#2, you'd kinda look like a loser wearing a jersey of a team that's not playing tbh and would probably get heckled by surrounding fans. When I went to Eagles/Dolphins a year ago a dude in the row behind us was wearing a Broncos jersey and the fans gave him shit for most of the 1st quarter...then again could just be a Philly thing.
Unless your object is to troll Cardinals fans on Sunday and chirp them how much better the Seahawks are this season, Id keep it casual and enjoy the game man!
Better yet, get a Pat Tillman jersey, he's a god damn american hero!
Why not both
wear what makes you feel comfortable
They all make your ass look big.
A Browns sweater.
After the Rams give you another beat down tonight, you'd probably not want to go with option 1.
Fuck the haters, rep your squad.
I would say just wear normal clothes. If you really want to rep your team (they are a divisional rival, so it could be fun, but it could cause problems) throw on a hat or something. A few years back I got tickets to the TCU Vs. LSU game, but I'm a USC fan. I threw on a normal shirt and my USC hat.