Start by telling about it to your close safer friends,
You can also use this website link to make it more official! and clear to them.
Once they are more informed then you can discuss it again, that will avoid you listening to some stupid and embarassing questions due to their ignorance on the subject.
I, being also gay, I have been spending the last 20 years coming out to people.
Hiding skeletons in the closet tends to crippel you from the inside, make you vulnerable and insecure, so I gradually learned not to keep private this kind of shamefulllll secrets.