How can we avoid inappropriate topics like'masturbating with friend' in conversations?Well, first of all, we should have a good sense of propriety. We can start by choosing topics that are more general and positive, such as movies, books, or sports. Also, if we sense that a conversation is heading towards an inappropriate area, we can use humor or redirection to shift the focus. For instance, if someone seems about to mention something improper, we could say something like 'Let's not go there, but I heard there's a great new movie out!' This way we can keep the conversation clean and friendly.