Outlets and sockets. Figure em' out. Pack the right plugs.
Watch for trick steps everywhere.
Watch out for that Biker!
Watch out for cars driving through alleys and sidewalks. Most of the time, you got the right of way... Most of the time, the driver knows you have the right of way.
Brace yourself for the dirth of Wi-Fi around cities.
Bathrooms tend to be one stalls in Ferrara. Expect long lines.
Some locals in Italy aren't very smiling in certain territory, Ferrara being one of them. This is attributed to lack of diversity on Ferrara. Sometimes they stare. Just walk on and don't make eye contact. When in doubt, glare back (no, not really, don't try it).