Hi atra,
I know all men are different but here's some amazing qualities in girls that i really value both in the bedroom and out that I think most guys agree with
vibe and personality
When a girl has a VERY sweet, feminine, and caring vibe about her (while also being independent herself, shes not too emotionally needy, and its not super easy to hurt her feelings) and is very into and LOVES having sex (You can do this without looking like a slut and easy like girls are scared to come off as, just reveal this side only to the guys you want it from). But when you combine a caring, feminine, sweetheart, who's also a nympho and borderline sex addict who can get enough.... man you are gonna be damn near getting guys falling in love over you pretty easily (granted you are also a good looking girl and present yourself well). I know this has gotten me good a couple times.
sex and in the bedroom
okay first off just be REALLY into it. Nothing is worse than just having a dead fish in the bedroom who you have to check if she still has a pulse. If you are going to submit do it in a really sweet feminine way with a lot of submissive moaning and sweet touching, facial expressions, and things you say. Otherwise get really into it and show the man how much you really crave sex with him and cant get enough of him inside you. One of the hottest things ive ever experienced is a girl who was so damn rough with me i thought she was making be bleed scratching my back so hard, she mounted me grinding me really hard, she was also pulling my hair a lot. It felt like we were just two wild animals going at it with no care, or consciousness at all, holding nothing back.
Either way just let the guy know you are really into it with whatever style fits the way you are feeling and the situation. obviously the first is way better for bonding and emotional sex, the second is better for just being really hot, primal, and having a wild experience.
here's the big one though, you ready...
This one is going to get a little graphic but its probably one of the best things you can ever give a guy. Look up Kegal exercises and do them routinely until your vagina muscles are very, very strong. Then once you have your man inside of you and you are extremely wet, clench the muscles in your vagina as hard as you possibly can and grip down on his cock. Then "Work" his cock using your hip movement and releasing and squeezing your vagina muscles as you take him deeper inside of you. To get the imagery and technique right, you want to be "Milking" his cock. watch out with this one though, because when you are really good at this you can cause him to become paralyzed momentarily, and it can be pretty hard for him to last very long

.
So there are some good things you need to get a man to really value and crave you as a partner, at least from my experience.