Women are attracted (on a visceral level) to a man's genetics, most of which you can't change. In varying order of importance:
1. Height
2. Facial traits that demonstrate high testosterone pre-natally and during adolescence: high-set cheekbones, a chiseled jawline, a proeminent chin, forward growth of the maxilla, positive or neutral canthal tilt, having a full head of hear and not being bald
3. Broad shoulders (swimmer physique)