All who know don’t have any issues with it which is lucky for me.
The only advice I can think of is not to try to tell them everything about it all in one go.
Tell them what you are and leave it at that.
Don’t go into a long rambling monologue,
This is what I did the first time I told a friend, and I think I confused the hell out of him.
If they want to know more they’ll ask.