The fifth habit is all about communication. It's about listening deeply to others, and trying to understand their perspective, before you try to get your point across. Think of it like having a conversation with a friend - you want to hear what they have to say, before you start talking about your own stuff.
But, how do you really listen to someone? Do you just nod your head and pretend to care, or is there more to it? Well, it's actually about being present and focused, and trying to understand where the other person is coming from.