Be genuinely interested in your partner as a person and in her life. Talk to her about her life--her job & career, the kids, her hobbies, her hopes and dreams, the books and movies she likes, etc. Ask her questions about herself, like how her day was. Don't let the conversation be all one way (all about you). If you are not truly interested in her and her ideas and opinions, beyond the fact that she is cute or funny or good in bed, save her some pain and don't get seriously involved.