9. HAND JIVE

After the game, keep your eyes on the traditional postgame handshake between the coaching Harbaugh brothers, John of the Ravens and younger brother Jim of the 49ers. Jim, by the way, is known for his extra hard handshake followed by a hard backslap (ask Lions coach Jim Schwartz). For that matter, keep an eye on their interaction before the game.

Photo: In this November 24, 2011 file photo, San Francisco 49ers head coach Jim Harbaugh (foreground), and his brother, Baltimore Ravens head coach John Harbaugh stand next to each other before the start of a game at M&T Bank Stadium on in Baltimore, Md.

Credit: Rob Carr/Getty Images