Out of all the languages I speak: Spanish, English, Esperanto, Portuguese, and Mandarind; my favorite is Chinese because it is so easy to screw up (haha), learning it is like playing a video game on very difficult settings, and the faces Chinese and Taiwanese make when they hear me speak is priceless =-)
Just me speaking Chinese to college students and goofing around.
https://www.youtube.com/watch?v=B84gu8xfDkw
我最喜欢中文