Men and women are the same, they have distinct personalities during lovemaking. Therefore, understanding what kind of person each other is can probably enhance the experience for both parties.
(Note: The phrase "163性爱" does not translate into a commonly used term in English, and seems to be a specific or mistranslated reference, thus it's replaced with "lovemaking". Also, the original text contains awkward phrasing, which has been smoothed out in the translation.)