Listen to hear what's being said rather than thinking up your response.

All of this was great advice, but this one especially gets me a lot. If I find myself about to interrupt someone or waiting to talk as soon as they are done speaking, I know I'm back in a rut of listening to respond instead of just listening.

Another piece of advice I picked up from a book about listening. After someone says something, it's not always good to respond with a "me too" story and put the focus on yourself. It's often better to ask follow-up questions about their story.