How/when did you know you were gay/bi?
I'm definitely not one of those people who realized that he/she was queer when he/she was born. I never really had crushes on boys or girls and I really only loved people in my family. I knew that boys were "supposed" to like girls, but that was it.
My only qualities that made me think I was "different" was my fascination with girl's clothes (dresses, ballet flats, heels, etc.), female characters (Minnie Mouse, Gadget, Sailor Moon, etc.), and fashion dolls (keep in mind that I still liked a lot of "boy stuff" too)
I didn't really start thinking about who I liked until I got to high school.
For example, there was this tall super handsome senior that I remember having a crush on back in the 9th grade. I remember loving his face (eyes, lips, nose,etc.), and I thought his hair was the cutest hair that ever existed. I'd usually go out of my way to say "what's up??" to him anytime he was around. I don't think I really put a lot of thought into the idea that I liked him though; I was sort of like that naive lesbian girl in that mediocre "But I'm A Cheerleader" movie (The main character in the film sort of just assumes that it's "normal" for straight girls to put pictures of shapely bikini clad ladies in their lockers

)
I think the person who might have really spurred me to think about my sexuality is my high school geometry teacher. He was a well built masculine looking Asian man who had a personality that I loved. Also,I don't know if I'm remembering wrong but he certainly wore more than a few tight shirts.
It kind of sort of clicked with me that maybe I might be someone who likes both boys and girls.

Once I got to college; I knew exactly who I was and who I liked (it took me 3 years to become "comfortable" with it though.)