If you focus too much or solely on your own interests or the interests of others, you are blocking what you could really learn about a person. In other words, when you get to know a person, don't focus primarily on what you like or don't like, such as movies, music, games, etc. But get to really know the person. I'm not always perfect at that, as I let me own interests get in the way at times. Yet I feel one should listen to the person in order to understand him/her.
Let me know what you think.