People communicate through various mediums. Talking is one of the best things there is about having associations. There are relationships with your family, friends and business associates. You would likely talk about different things to different people.
If you have nothing to say, it is pretty hard to talk! Of course there is always ‘small talk’ for family – what the dog did – what the kids did, etc. Things will come to mind. With friends there are a few more topics that could be discussed including career and romance.
However if you need to write or communicate in some other way to the general public, business peers, etc. then it is probably a good idea for you to read something interesting that you can then later discuss. For example world news and unfortunately that may include extremely negative or problematic issues. Of course best to avoid ‘politics’ and ‘religion’ as they usually include conflict and confrontation. We don’t need too much of that.
However, ‘political correctness’ is the biggest threat to ‘freedom of speech’ that this country has ever experienced and it is a real danger. Next they will tell us what we should be thinking and we will be going out shopping for those tin foil hats so people can’t read our minds.
There is never any excuse to be cruel so right there that covers a lot. People do have the right to their opinion of course; but if it is hurtful in some way you might want to avoid mentioning it at all rather than to judge and thereby humiliate someone as well as yourself.
The point here though is when you have ‘writer’s block’. It is really not about writing. It is about not having any ideas. If you read the news, or a few words in a book, or even an advertisement on a cereal box you are likely to get some ideas. Stay interested in your surroundings so that you will have plenty of thoughts that come to mind that may create an interesting conversation.