Kind of a bit late on this, but it good in general if anybody is willing to read it:
As the previous poster stated, eye contact is very important in any sort of communication. Show initiative that you're willing to give some sort of effort to reach out to one person. Another factor is personality. People likes a person that expresses themselves and open themselves up to people that are around them. Another things is to generally focus on the positive things about you and interests you may have that is not counter-productive to your goals in meeting a woman.
Regarding the emails, if they don't respond, that's their loss. don't change yourself for anybody or anyone. Don't lose all hope just yet, there are women, believe it or not, that still like the finer qualities in an man rather than physical appearance. If you're reading this, just keep that in mind.