Did someone already say suck dikk?
Just kidding.
Be there for him when he is at his worst, and don't make him feel less than a man for allowing you to see that side of him.
Respect your relationship enough to keep personal issues between y'all, unless it's agreed upon by both parties to get a third opinion about something.
Never demean him verbally. Some things a man can forgive but will never forget.
Be willing to try new things sexually. He may or may not even like it enough to try again but at least give him that experience to base it off of.
Cook. Learn to cook special dishes/desserts, it's surprising how good food segues into foreplay (at least for me).
Like CinnaSlim said, be upfront with needs and wants. You don't want to get into an argument ten months down the line about something he would've said yes to had you asked.
fukk him like there's no tomorrow. He'll match your intensity if he's a decent man.
There's more but I think most of it has been covered...
Oh yea, almost forgot. Suck his dikk.