How do I know how to come out?

I don't have any real advice because I've never been put in this situation, but I would honestly go to the person I trust the most weather it be a best friend a concealer or a parent. Whoever you think would not judge you, tell them. Just be like "Hey, I like boys and girls." There's no reason to beat around the bush. If that one person acts out, makes fun of you or anything like that, they're not the person you thought they are. MAYBE they are just acting like that because they've known you so long that it's weird to them, there are multiple senerios. I would tell the person you trust the most and go from there. GOOD LUCK!

It is always hard and it is a process, not a one time thing. The first thing that you need to do is make sure that you are comfortable telling other people. When you are ready, make sure that they know that this is really important to you and that you need to be heard and understood. It is tough hearing all of the bi criticism (I still hear it all the time from people I love), but you have to be willing to stand up for yourself.

calm down, that is no urgency to tell anybody your sexuality, that in case is the same as mine. try your closest friend first, your best one. i did it and he reacted the same way as if i said "i ate cookies", but for some people is harder to really get it right, they are close-minded and there come the difficult part: tell your family. i never told this to my family but they are aware that i dont follow their religion and i got some critics cause of that, but one day they'll understand. Your family has to love you, well in theory. just dont worry, and be patient. bring the subject with calm, be positive and try to explain things some way they can understand. good luck.