http://www.reddit.com/r/nyc/comments/n1bqg/an_investment_bankers_cover_letter_for_a_second/
"You played with your hair a lot. A woman playing with her hair is a common sign of flirtation. You can even do a google search on it. When a woman plays with her hair, she is preening. I've never had a date where a woman played with her hair as much as you did."
he's also taken econ
"Why am I writing you? Well, hopefully, we will go out again. Even if we don't, I gain utility from expressing my thoughts to you. In addition, even if you don't want to go out again, I would like to get feedback as to why you wouldn't want to go again. Normally, I wouldn't ask a woman for this type of feedback after a first date, but this is an exception given I think we have a lot of potential."