Catholic nerdiness, redux
A few more examples....
When a friend comes back from a trip to Europe, the first thing you ask is what shrines he visited.
You tend to think of cities in Europe in terms of saints and places associated with them, not regular tourist attractions. ("To heck with Buckingham Palace ! I want to see Tyburn !" )
I'm not sure if this one belongs more under "Catholic Nerd" or "Tolkien Geek"...
You occasionally pray the Sign of the Cross in High Elven. ("Essenen Atarwa, ar Yondova, ar Ainasúleva. Amen. ")