My spouse and I lived in a bunch of countries over the years. We speak Quebec French, English, and Spanish, as well as a smattering of Chinese, Bulgarian, Korean, and a few odds and ends here and there.

We basically speak whatever we think people around us won’t understand. Very colloquial Quebec French in non-French-speaking countries, Chinese around white people, Bulgarian around non-white people, or even a cryptic mix of everything when we’re not completely sure.

We figure anyone who understands is probably someone we want to know… Hasn’t happened very often, but it does happen. So far we weren’t saying anything overly embarrassing when we got caught, but we sure as hell have no filter between us because of this!

I love those videos where people are caught trying to have a private conversation by someone who speaks an unexpected language! Also it's shocking to me how many people loudly speak common dialects of Chinese and don't expect anyone to follow... literally over a billion humans can understand Mandarin, someone is listening.

Haha, I’ve caught plenty of Chinese speakers having what they presume is a private conversations in my presence. People just automatically assume non-Asians can’t speak Chinese, even when they live in China.