Philadelphia police officers are working the parade route primarily to help keep everyone safe, of course. But that doesn't mean they can't get in on the party, too.

Some were seen waving Eagles flags outside Citizens Bank Park.

Others are throwing footballs with fans.

This officer took a selfie and proclaimed, "We love the Birds. Go Birds!"

Outside the Linc, some officers led Eagles chants.

Parade-goers have been thanking officers and being pretty friendly. It's a happy day, after all.