Hi Seeker,
Welcome to the kewl side of town! Sweetie, I know many a man who is in your shoes, and that's totally kewl, but there are just a couple of things I want to throw out there to ya.
#1) TGirls, for the most part just want to be treated like any other girl, so when it comes to conversation and not knowing what things to say, just be entertaining. Be witty, be fun, just be yourself, but don't get all sex-crazed. That's one of the misnomers guys get into that all TGirls are just about sex; WRONG! We want to be treated accordingly and nothing more.
#2) Please, please, please, for your sake and ours, don't be thinking that I've "never been with a man before"! TGirls dont wanna be thought of like that. True, we are "males" in the very slightest/genetic sense of the word, but again, treating a TGirl like a woman is going to get you much farther than thinking of us as "males". I mean, really, if you wanted a male, you'd go after a gay man, which we are certainly not, and not what you are looking for! It's been my experience that men that are into transsexuals are quite str8 and into the extreme femininity that us TG's exude!
I hope this helps, and if you have any other questions, please, please post again! We are all kewl, and all friends around here!