Probably Sicilians have developed their own “signs language” because of the vary many “visitors” they welcomed in their land during history.
Can you imagine having to learn all those different languages (Greek, Scandinavian, Spanish, French, Arabic …)?!
I find La voce del Corpo a great docu-fiction. Soon it will be presented in Australia, after being successfully screened in New York. I really think this kind of “communication” make people intrigued about our country and make them want to visit and enjoy Italy, while discovering its peculiarities.