Expressive hand gestures

Italian language is reach on expressive hand gestures, they are different from region to region and the most popular is this way of communication in Naples, I think. First of all, because historical origins of this language is different as in other parts of Italy. For different centuries kings of the region had roots in Catalonia, so the dialect of Naples is more easily comprehensive for Catalonians as for Italians -and the gestures dialect too.

The best example is "yes".
What do you do, when you say "yes"? Probably you bend your head forward down-up.
If you are Bulgarian, you rock it left-right.
Neapolitan click with the tongue and bend the head up-back.

Nothing terrible, if you don't understand it.

Sometimes gestures language is not so innocent as we think about it. When you plan a trip in a place that you did not visit before, you have to control the most popular and offensive gestures common for that place. To understand where they've sent you, at least.

An other popular gesture is "ok"
Something like in this photo.
Very well -if you are American or Russian
Great job -the hand moves from right to left "closing a zip" -in Italy

but......
it has indecent sense in Brazil
offensive -you are zero -if you show it to a person in France or Germany
money -in Japan
I'll kill you -in Tunisia
Go to devil -in Siria

Do you understand? Take your hands well bended, when you travel!

Different sources. Maybe not very attendible (my opinion). Correct me, if you find errors.