So this guy is hanging out in Philly and he happens to spot a Philadelphia Eagle. He gets his friends together and snaps picture. Then he tweets it out.
As you can see, he was most certainly not hanging out with Evan Mathis. It was actually Jason Kelce.
Being an avid tweeter himself, Mathis saw this and responded.
And of course Kelce saw that and got in on the fun.
I'll just leave this without comment.