Here are my low hanging fruit items:
Be confident - in the spirit of “fake it until you make it”, always appear confident even when you aren’t. Women can smell fear and it stinks like last weeks garbage. Women like men that are confident.
Be decisive - never say “I don’t know, what do you want to do?” Be a man. Grow a set of balls and make a choice and stick with it. “I think it might be fun to do (this), are you up for that?”
Be considerate - always consider the other person first. It’s in your long term best interest that they are happy so be nice even if they aren’t. “You catch more flies with honey than you do with vinegar.” At least in the 1950s.
Be on time - women hate when men are late. Of course, if they are getting ready we are expected to wait as long as it takes even if we ultimately lose the table at that amazing restaurant that it took you 2 months to get a table at.
Be dependable - if you say you are going to do something then you need to move heaven and earth to do it even if it’s hard or expensive. Women like a man they can count on.
Be romantic- women like that sappy shit. So buy some flowers and a card and light some candles because that’s the only way you are going to get anywhere with most women.
Be aware - become expert in foreplay - invest some time into the reality that the average man takes 3 minutes to achieve orgasm and the average woman may require as much as 20 minutes. If you are a decent boyfriend your 3 minutes is at the end of the 20 minutes and not the front.
Be a great sexual partner - become an expert in female anatomy. Related to the the one above those additional 17 minutes are crucial and if you aren’t well equipped with knowledge then it doesn’t matter how well equipped you are otherwise. All women are different but they operate on the same basic anatomical realities. Invest some time in learning what makes your partner happy and what they like and don’t like.
Be funny - Laughing releases the same brain chemicals as an orgasm. If you can’t make her laugh you have no hope of being able to bring her to orgasm. It’s Ok if she laughs as long as she doesn’t laugh and point, that would just be rude. Haha.