I'm finally going to take on what is my favourite language, Italian . . . not the most useful, of course, but to my mind certainly the most beautiful and enigmatic in its intensity. (Yes, gesticulation included)
I've excluded English as we all can - to a certain degree - use English to communicate (no slight on any posters here).
I am lucky to be able to speak a few languages to varying degrees but there are those I'd love to learn . . . in the case of Arabic to learn again as we left the place (Lebanon) when I was fluent and seven years of age - zilch left.
Over to you . . .
(Geez, tomcat, how fast were you in responding!!!!!)