I am presently a member of the organizing committee of the commission "communicating Astronomy with the Public" of the International Astronomical Union. I participated in two meeting organized by this commission, in Medellin (Columbia) 2016 and Fukuoka (Japan) 2018.
I also give public talks in English when invited in foreign countries. I gave a talk in Washington D.C. for the american public, on the subject "Earth, Space and Beyond"; several talks in China, in English with simultaneous translation in Chinese, on various subjects like "The Music of the Stars"; one talk in Berlin, in English with simultaneous translation in German, etc.
Paper published in "Planetarian" about the new music of the spheres: