You've gotten good advice. But I want to add on to how helpful the Italy Phrase book is. Before our first trip to Italy years ago I also bought the phrase book. Every night at dinner hubby and I would pass it back and forth and read from it and later quiz each other. It was so much fun at home but it was very helpful in Italy. In one small family restaurant in Rome (The Grandpa cooked and the Grandma served) Grandma had served us , we were the only non locals there, and she looked at my husbands empty plate and asked, "OK?" He answered in Italian, learned from the phrase book, that it was better than his Mama's cooking! She got this surprised looked on her face and kissed him on the top of his head. I asked her if I could buy a dinner plate because we had a great meal and a great memory. She got someone from next door to translate. We liked the logo. (This is the only shopping I do in Europe, is buy dinner plates with logos from great meals and memories.) She went in the back and got a nice plate, and a wine glass with the logo and had packaged them up nicely. I paid about 5 Euros. Its sitting on a plate stand in our dining room, along with some others.
Get the phrase book and start practicing right away!
Have a Great Trip!
Mimi