You, just like lesbians, gays, straights, or transgender people, are perfectly normal. I find a lot of pleasure in my sexuality. It's a natural part of me, and not hiding or changing it gives me a real sense of freedom to be myself. In many ways this is a difficult question to answer. Our sexuality does not determine who we are and what we do.
Bisexuals come in all shapes and sizes, from all occupations, and with all levels of education.
Bisexual people can do anything we wish to, similar to our straight and lesbian and gay friends. However, you may suffer discrimination, or even violence, because of misperceptions and prejudice from heterosexuals and gays and lesbians alike. This is why organizations work for bisexual rights and to alleviate misperceptioins of bisexual people. Check the resource list for details. It's a good idea not to come out until you are comfortable with it.