The 11 laws of the "Kölsches Grundgesetz" (Cologne Constitution) reflect the attitude and wisdom of the people here. Learn some of the laws and practice their pronunciation.
Record an audio file in which you both speak three articles of the Cologne Constitution together. To get an extra point, visit the Brauhaus Früh and ask a Köbes - as the waiters in the breweries are called in Cologne - if you can pronounce the Grundgesetz correctly. Take a photo together in the brewery.