I just told them i liked both guys and girls. Hesiently and quietly, of course, but i just blurted it out. I wasvjust so agfraid of their reaction and fed up with nobody knowing, so i just said it, like ripping off a band-aid.
I did the same thing with my mum before I realized I was pansexual.. I said I like girls and guys.. It's still something of the truth though and it wasn't even an issue.. I used to think you had to say the word, but you don't need to.. Just be honest, and open and say that you are interested in men and women and could see yourself with either romantically.
What is hard to explain is WHY you are bi, because nobody knows the answer to that question. But, it is easy to just say that you like SOME girls, but you also like SOME guys. Almost everyone understands "liking" only certain people, so that will probably suffice as an explanation to them. You don't have to get into detail discussions about sex; most people would not expect you to.
Oh, Hi Jake!!! Are you asking how to tell people that you're a former bisexual or trying to tell people that you are one? How to Tell Someone You Are Bisexual (with Illustrations) Many people's sexuality changes fluidly with time. So it's normal if you change sexualities... I did. Going from straight...to bicurious...to bisexual.