Seth nails it on the head with this posting about customer service. There are corollaries everywhere, too. Even in social situations. Try this: the next time someone is talking to you, pay close attention to what you are thinking. Are you really listening to the person 100% (not including the overhead of having to notice where your attention is) or are you thinking about what you want to say in response?
Or worse, about something completely off track to what the speaker is saying?
We rarely give enough of what we so often wish to receive: attention.
Whether we're located in a waiting room or sitting across from our significant other, what percentage of the time are we putting our agendas on hold while we give others our true attention?