The difference between a confident stud, and a confident creep, illustrated (sometimes comedy is the best way to make a point): http://www.youtube.com/watch?v=gBVuAGFcGKY
you'd honestly be amazed at the effectiveness of confidence for unattractive guys. also pro-tip: just because you don't consider yourself attractive doesn't mean that dressing well and taking care of yourself doesn't do wonders.