Verona is a very romantic city. Many people just love having their picture taken at Romeo and Giulia's balcony. Herds of people go there. (see) Apparently it is good luck to write your name on the wall next to it. (click)
More lasting is to write your name on a lock, then throw away the key. It is very difficult to get rid of. The locks appear everywhere in the city. I quite like that. Innocent and lasting.