In order to have a good meeting in Italia, you need to have a preparation about:
1.  Appearance: Italians judge people by their appearance and form impressions based on how well you are dressed. No amount of wishing this weren't so will change it, so make it easy on yourself by conforming; after all, good clothes will give you confidence in a business setting, so it will help you too. Make sure you are adequately dressed up for any business occasion in which you're interacting with Italians
2. Punctuality: Italians are usually relaxed around issues relating to time. Being late with a good reason will not have any negative consequences. However, deliberate lateness is considered sloppy and taking people's time for granted is simply rude. When doing business in Italy err on the side of caution and aim to be punctual.
3. Italians prefer to do business with someone they know. When doing business in Italy, use contacts and networks to introduce you before proceeding to set up meetings.