Some things basically attract all men: nice skin, nice hair, nice eyes, nice boobs, nice butt yada yada yada. You do what you can with that of course, but you can’t exactly spin a cocoon around yourself and suddenly bust out in six weeks like a magical tits-and-ass-butterfly either. What you really want is something easy and practical to score some easy points in the attraction department.
Well sometimes those things really do exist as there’s often some sort of accessories or clothes that turn your man on in particular. So they work for him, but not all men. He’s not always going to tell you about them as some of these things can be deeply personal veins of erotic kink for him. He may or may not understand why he feels as he does about them either.
So you’re going to have to ask him about what things turn him on, or he may have already told you some of them and you’ve ignored them. Once you get it into your head to do them, they are always automatic +1 attraction when you do them. You don’t even need to understand these things and often they can seem to most people to be decidedly mundane. You initial reaction is quite possibly going to be confusion rather than icky repulsion.