How Do I know If I am Bi-Sexual?

Bisexual people have the capacity to love people of either gender. This can include physical, sexual, and emotional attraction to and/or relationships with men and women. Over time in life, a bisexual person might feel equally attracted to men and women or to one gender in preference to the other. The strength of these attractions may change over time. Being bisexual does not define either one’s lifestyle or sexual behavior. Bisexual people may be monogamous or abstinent or may have multiple sexual partners, just like heterosexual and lesbian and gay people. Many people are bisexual and bisexuality cuts across distinctions of race/ethnicity, gender, age, class, ability, and religious affiliation. You are not alone, and you are likely to meet bisexual people just about anywhere you go.

See https://www.msu.edu/~alliance/faq/faqbisexuality.html  

See brochures ‘Am I bisexual, Bisexuality 101,