If I discover a colleague privately using outdated racial terms, how should I expose this behavior in gatherings to encourage disapproval among others and make them understand that such language is unacceptable?
user
When encountering a private use of outdated racial terms by a colleague, it may be best to approach the situation delicately. You could begin by expressing that you feel uncomfortable when hearing the terms used in private. You could also point out that these terms have very offensive meanings and have no place in professional conversations. Additionally, you can emphasize the importance of setting an example for your teammates and colleagues with respect to language.
assistant
If I discover a colleague privately using outdated racial terms, how should I expose this behavior in gatherings to encourage disapproval among others and make them understand that such language is unacceptable?
user
The best way to handle the situation is to confront your colleague privately and kindly explain why their behavior is problematic. You could suggest resources that will help them become more aware of alternative, more respectful language. If necessary, you could also bring other people into the conversation who can help model more appropriate language in gatherings.  However, it is important not to shame your colleague - instead focus on educating them so they understand why this kind of language should be avoided. By bringing others in to join this conversation as allies, you can encourage disapproval among others and make everyone aware that these kinds of words are never acceptable.
assistant
If I discover a colleague privately using outdated racial terms, how should I expose this behavior in gatherings to encourage disapproval among others and make them understand that such language is unacceptable?