How do you pronounce faux pas?

Pronounce it as you would FO, or Bow with F instead of B.

There are three ways you can pronounce 'fawx'.

The most correct English proncounciation is just as 'foe' (IPA: /fəʊ/ or /foʊ/).

You can also go for the original french pronounciation which you can hear in its wikitionary entry (/fo/).

Some people say it as fox (/fɒks/ or /fɑks/) or fawks (/fɔks/ or /fɑks/).

Choices two and three could garner funny looks from different people.