Can't presume to speak for all men, but here are some things *I* wish women knew.
There is no true or useful information about what men want or what men think in Cosmopolitan magazine or any of its imitators. Never has been, never will be. You really think you need to know "16 Secret Sex Moves That'll Have Him Begging For More?" They're not secret, we're not that complicated (really, all you need to do is show up and be willing), and no man worth having a long-term relationship with will beg you for anything. If Cosmo's editors were honest, they'd run articles like, "Lose Those Unwanted Brains."
Mere words cannot express how much I despise that magazine.
Don't ever ask us if something makes you look fat. If something makes you look fat, it's because you're fat. Deal with it.
Don't hold up two outfits and ask us to pick one for you to wear, and when we do, ask what's wrong with the other one. Nothing's wrong with the other one, we just like the first one better. No further explanation is possible.
No sexual teasing. You put out an ad, the man tries to answer it, you reject him, you deserve a 2x4 upside the head. There are some things you must never do to a man whose respect and affection you value, and if that's not at the top of the list, it's certainly in the top 3.
Say what you mean, and mean what you say. We're not good with hints and innuendo. You want something? Ask. You don't like something? Say so.
You can tell us what you want us to do, when you want us to do it, or how you want us to do it. Pick one. Two is annoying, three is infuriating, and repeated often enough is a relationship killer.
We're not stupid, insensitive, thoughtless, selfish, chronically horny, aggressive, violent... Well, okay, some of us are. So are some of you. Avoid such people. Most of us are pretty decent, just know that we don't think the same way you do and that doesn't mean we're wrong or don't understand you or don't love you. We're just different. Celebrate that with us instead of trying to make us think like you do. That's a hopeless task.
Ah, maybe I'm being a little more serious than this thread really expected. I have been personally deeply wounded by what I now think of as the lunatic fringe of the women's movement--and don't anybody try to pretend there isn't one, any social movement spawns a certain amount of over the top lunacy--while trying to be supportive of its broader goals and objectives, and it hasn't been easy.