 It is customary before a Baltimore Ravens game to tap the shoe of the statue of Johnny Unitas, Baltimore's star quarterback of the mid twentieth century while the Colts were still playing in the city.This is seen as a good luck charm for the game to come.When the national anthem is played at an Orioles or Ravens game, the word "oh" is emphasized in the line "oh say does that star spangled banner yet wave" by the crowd to show allegiance to the Orioles, using their nickname, the O's.