1. DANCE, DANCE, DANCE

Ravens fans will rock the building during Ray Lewis' pregame Squirrel Dance, a YouTube sensation that Lewis surely will perform for the final time before retiring. Will smoke and flames accompany the star linebacker's ritual?

Photo: Lewis reacts as he is introduced before an NFL preseason football game against the Detroit Lions in Baltimore, Friday, Aug. 17, 2012.

Credit: AP Photo/Nick Wass