hi! ... i get the feeling i already made a topic about practically the same thing before

i was getting the idea of going fulltime for my second semester at this uni (sooo, in 3 months). AFAIK that means changing whatever records i manage to change at uni and best to tell those professors which i'll have again.
of course that also means coming out to the 22 people in my semester, specially since we're all friends and do a lot of stuff together. i probably should start with those who are closer to me, that would narrow it down to abouuuut ... 15. Although none of them so close that i'd trust them with this secret of mine before absolutely necessary.
so, how do i go about it? im not sure how many of them feel about GLBT, but i do know that one guy is with his family in this religious group thing that believes that everyone else is evil and gay people are just sick and curable and then theres the other guy who's just a jerk.
do i just go at one of the times we're together (more or less, we aren't always all together of course) "remember that costume party, where you commented that i could pass as a woman? that's good, because i am one and i'm going to start going to live as one during the holidays". Dunno, i always hate interrupting a good mood with something serious. i really have no idea how to bring this up.
The "message on our forum" way seems easy, and if i word it right and have everything inside, i don't have to worry that people go and assume wrong things (of course they will, they always do) before i get to correct them. but then again the suspense of how people will react might kill me.
of course i might just not tell anyone anything and just appear fully dressed as a woman on the first day back and let events unfold! How could that ever go wrong?
well apart from that, i'll have to go tell my parents that when i come for the next holidays i'll definitely start dressing as a woman first at home and then outside too. Somehow every time i talk about transsexual stuff with my parents, it feels like i'm coming out all over again.