How do I know if I'm gay/lesbian/bisexual?
Sexual feelings can be incredibly confusing in any instance, but often they're more so if they seem to be directed toward members of your own gender. The main thing to do is relax, and remember that you don't have to rush and "decide" what you are or what to call yourself. Sexual identities can develope and change over time. If you relax and pay attention to your desires, you will be able to figure out what turns you on and what you're attracted to -- without worrying about what to call it.
Most people do define themselves as lesbian, gay, bisexual, or straight; but ultimately people are more complicated and interesting than these categories. It's up to you to figure out how you want to identify yourself (as bisexual, lesbian, gay, straight, or whatever). Keep in mind that there are as many sexualities as people out there, and there's one that is uniquely yours. Enjoy it!
For more information, check out some of the Gay/Lesbian/Bisexual/Transgendered resources on our Resources page.