Like building a great body?
I am already well groomed and dress conservative but classic. I don't know how to style or cut my hair or whether it's better to have a beard or not for example. I don't wish to look "feminine" but I look a bit youthful in that I don't have like chiseled looks but more boyish ones I guess (face fat like buccal fat did not go away after puberty, so I guess it's just how my face is although I assume if I reach low enough body fat, I might look more masculine?)
JUST to be clear: I don't want to be popular, I don't want random girls to like me. I want to be attractive for my girl (I am monogamous, not interested in having affairs but am currently single).