Speaking of David DeAngelo, purchase his e-book "Double your Dating" and give it a read. It's interesting, and it's very insightful. You will have an "ah-ha!" moment every 5 minutes (I know I did the first time I read it).
You may think it's stupid to be "learning" this stuff, I did in the beginning. However, once I got past that and opened my mind to it, my entire outlook on women changed. I feel that the topic of women, just like everything else in life, requires education as well as experience to get desired results. Give it a read, and if you don't like it, he has a 30-day money back guarantee. Dating Tips - Secrets To Attracting and Meeting Women
I've referred many of my friends to this program, and it has changed their entire lives. It changed mine when I first read the book 3 years ago. Good luck!