I think this is a misunderstanding of the advice. I don’t particularly like talking about my life because I live it, and it’s mostly pretty boring. But I do like discussing certain topics. The advice is to find what the other person like discussing, and discuss it in a way that makes them feel you are listening to their point of view.

Personally I don’t think I’ve ever really failed when I use this approach. You can go in with something as direct as, “so, what topic would you like to talk about?” And more often than not have a good conversation.

Even more reason to let the other person talk about themself if they enjoy it.

If both of you dislike talking about yourselves then try to explain something about a subject that you find interesting.

Edit: I want to add that not liking something does not mean you can't be good at it.