I don't know that revealing our sexual orientation to others we do not wish to have sex with is a good idea. If you are bisexual, then you are bisexual. It's not a secret or hidden or anything else. My stomach lining is probably a healthy pink but, so what? No one else wants to know about my stomach lining and not many others are interested in your sexual preferences unless they are intimately engaged with you and want to have sex with you.

The only person you need to reveal your orientation to is one with whom you are going to be intimate. You don't really need to reveal it to them other than so their ideas and impressions can be confirmed or reoriented :-) so they can better decide what they want to do.