Then, you'll try to figure it out by yourself at the automatic ticket machine but that won't get you anywhere. And then, the man from the ticket office will finally decide to show up and you'll ask him the same thing "train to Spello?" and he will answer "I don't know". Can you see how frustrating this is? Italians and their stupid favorite sentence "I don't know" that makes me want to kick them in the face! Beware that I absolutely LOVE Italians, but they can drive me crazy at some point.
This massive information (joking obviously) will prevent you from wandering around the train station with a Korean girl, who is very chatty and happy, who'll end up taking photos with just because you helped each other in the difficult mission of finding out the train to get.