I'm definitely not planning to come out. My housemate knows, she's my security buddy, a male friend knows and another friend back home. But that's it.
Though I honestly don't care about what people think and wouldn't give a crap if somebody knew, I'm thinking about the more long-term damage. Ok, I may not want bf and kids yet, but what if I actually change my mind one day? It's more about protecting my future and my family than about myself.
Which is why I'm also very careful when I'm with my family, which is very often. I double check my bag to make sure there's no lube/stockings/condoms. I won't ever use my sister's laptop, I do know how not to leave any trace but what if somebody is better at it than me...? I won't answer any calls or texts while around my family. And I'll never make them notice I have a bit more of cash on me than normal.
I just say I'm a PA to somebody really important. Which is what I used to do anyway and explains my nice outfits and sometimes weird hours. And the fact that I know fancy restaurants etc.
Now I'm sure some people think I have sex with my boss anyway but that I don't care about. They all know I'm no angel and I just try to stick to my "official version".
I agree people are mostly interested in themselves but they do love "scoops" and "scandals". And it's not worth it to entertain them at your expense.
Now do not hand out cards. But nothing stops you from turning/smiling back when a nice guy smiles at you. And if by any chance you start chatting then nothing stops you from hinting/implying what you do. But then again be ready to handle their reaction, which might be positive or negative as well.