Bisexuality Support Group
Bisexuality is a sexual orientation which refers to the aesthetic, romantic, and/or sexual attraction of individuals to other individuals of both their own and the opposite gender or sex. Most bisexuals are not equally attracted to men and women, and may even shift between states of finding either sex exclusively attractive over the course of time.
From what I commonly hear, it's just analyzing your feelings until you think you figured it out, or just waiting and seeing what happens.
like siive said its about analyzing your feelings and figuring out how you feel towards the dif sexes.