How Can You Teach Listening?

I used to think that, of course, how can you teach listening? You can only practice listening by listening. But yes, I was very wrong about that. In fact, in the same way that you can become active and you can become aware of, let's say, grammar mistakes, you can also actively improve your listening. Someone once said we listen very often in order to reply, not to understand. And you can see it in people's faces, right? When they're just waiting for you to finish speaking so they can speak. It's not nice. They're doing all the right things with their body language, but they're not actually listening. Exactly. Which is what