feredir:

easiest thing is probably to widen the shoulders and up the muscle mass! it really helps to study anatomy so you know which areas to exaggerate. a more muscular/masculine person will have a more defined sternocleidomastoid (in blue) and bigger traps (green); basically a thicker neck. playing with the shoulder to hip ratio will help as well. i guess if you want a super manly man just make him look like a dorito