One of biggest complaints women have about men is that they just don't listen. This can cause big problems in relationship. Sure, you may hear words, but are you really absorbing what she is saying? It's a serious mistake not to pay attention or take her words seriously and could mean ultimate failure of relationship if that bad habit continues.
Women don't just talk to hear their own voices. Most times they're trying to get a point across to you. Listen...I mean really listen to what they're telling you. Granted, sometimes it may seem as if she doesn't have anything of real importance to say, and in your opinion, she's just babbling on about nothing. But you'd better listen anyway.
If your mind is wandering or you interrupt her with a comment about something totally unrelated to what she's talking about, she'll feel you simply don't care about her and this can lead to hurt feelings and resentment on her part. Over time, this can seriously damage relationship or cause its demise. You should never dismiss what a woman has to say as trivial or ignore her. Don't just hear words -- absorb them like a sponge.
Sometimes a woman may feel need to vent her feelings if she's upset or frustrated about something in her life. It may or may not have anything to do with you personally, but you are her sounding board. She'll likely ask you later what you think, so you better be paying attention so your answer makes sense and relates to subject at hand. If you've been tuning her out, your inattention will likely anger her, cause hurt feelings and resentment, and make her feel unimportant to you.
Show her you're interested in what she has to say. Ask her pertinent questions and listen to her answers. Sympathize with her and show her you understand how she's feeling. To maintain a strong relationship with her, you must be her best friend and allow her to feel free to communicate with you about anything. Women are more verbal than men. She needs to know you care enough about her to listen when she speaks.