I am in Rome. I just went online and purchased train tickets (second class) to Orvieto for Monday. I am going to print the tickets at hotel. Do I need to somehow validate these tickets? It looks like from website I just need to be able to show them along with ID if questioned... is my understanding correct? I just walk into Termini and get on the appropriate train? And how will I know where second class seats are?
FYI--This is my first Italy trip and all that I learned on this forum has helped me TONS. Thanks to all for the info!