Here are some examples of faux pas:
* Interrupting someone while they are speaking.
* Wearing casual clothing to a formal event.
* Making a joke that is offensive to others.
* Forgetting someone's name.
* Commenting on someone's appearance in a negative way.
The key takeaway is that a faux pas is something that violates social norms and can cause awkwardness or embarrassment.
While the term originates from French, it is commonly used in English and other languages.