Is it appropriate to pronounce my sexual orientation on facebook?

[Galliane]

You can change it, but remember what happens on facebook do not stays on facebook. My better advice is not to do it, for two reasons:
1) if everybody you care about already know, then the rest of the world doesn't have to. If you didn't tell everybody in the first place there is a reason, I think. Then if you want to tell I think it's more real and better in person =)
2) i know people that applied for a job and people of the company checked their FB page. Even if you are only 14, just think about the consequences of this in the future (I don't think your future boss has to know your preferences, or at least not thanks to facebook!)