Moses McCormick is an American who learns languages as a hobby. He invented the FLR Method of language acquisition and used it to learn . . . well, more languages than I can keep count of. His YouTube channel is filled with videos of him casually meeting people and switching between languages in the middle of conversations. In this video, he uses, among many others, Cantonese, Somali, Zulu, and Russian.
-via Geekologie