Well, I'm not a guy but I can tell you what my fiance does that impresses me...
-He tells me he loves me every day.
-He never lets an argument go unsolved like most guys.
-He never lets me carry ANYTHING! I have to pry bags from his hands! It's kind of funny but sweet.
-He makes a point everyday to make me laugh.
-He kisses my four-head while I am sleeping, everyday before he leaves for work.
-He truly loves my body in every aspect, even though I don't!
-He buys my tampons all by himself!
-He doesn't judge me for what I believe in, but embraces it.
I can go on and on... I guess that's why I love him and want to marry him :)