I have way more close friends now than I did living as a guy. I feel I am more open and friendly, carefree? Hard to explain but people seem to enjoy being around me. I honestly lost one friend when I started living full time, he was an extreme homophobe and assumed everyone would think he was my gay lover if we stayed friends or something silly like that. *waves bye to a moron* And just to note, none of my new friends are trans or part of that process, they are just new people I have met.
I know now everyone has had the same experience but my transition was a huge positive as far as my social life.