With my wife I listened to her. Asked about her interests. Cooked for her. Always smiled. Watched & listened to what she liked. She loved bee gees; & Grease. So I learned every Travolta dance from all his movies. And every song in Grease. And every Bee Gee song.
If you can imagine a 285 lb guy who looks like Thor dancing like Travolta & singing more than a woman. I dance great but look like a dancing bear. Other than rap my singing is bad.
I also would pick her flowers. Take her on walks.
As for clothes. Wear kakis; hush puppies; button up shirts; belts. Nice cologne. Moose your hair & use hair spray. Brush & mouth wash after each meal. Carry breath mints.
Hey I played football; hunt; & benched nearly 600 but I still had good look. Women like that.
Start watching stuff like hallmark channel. Read romance novels. You have to learn how they think.