This is often quoted advice, but like many things it’s only true in moderation. People who take it too literally come across like therapists or interviewers. Some people are not comfortable talking about themselves, and most well adjusted people don’t want to talk endlessly about themselves. A good conversation should usually be an exchange.

I'm quite shy and don't enjoy talking, so I've learned to ask gentle but leading questions to encourage other people to talk, even if I already know the answer. It really works.