Much laughter ensued.
Anyway, it seems that the habit transferred to the new world without anyone really trying.
For perspective: I was born in northern Italy. Very few people within my social circles ever used any of the traditional gestures; when they did, they deliberately exaggerated the movements for comical effect, or put on a southern accent. Indeed, I have only recently discovered that gesturing is considered to be such a prominent, common feature of Italian culture... by reading English articles about it.
TBH, one of the effects of living abroad for more than a decade has been, for me, the loss of that smug Northern superiority complex. With all due respect to Giorgio Gaber, any pretence of Northern non-Italian-ness died with the first Berlusconi government.
La Mimica degli antichi investigata nel gestire napoletano (1832)
.... Barzini offered a little sample.... Upon reading [it], you felt that if you could not get hold of de Jorio's book immediately, you would bite your elbows....
(Clive, wasn't that you in Rome when that politician got shot?)