You can't read people's minds of course, but have you ever... Thought that people were spending more time than ever looking at you, perhaps confused if you are female or male? No, you are not paranoid, you just notice this.
I am not talking passing and not passing. I am not talking about mtf male fail either. At least, I do not think I am.
They are not snickering or pointing you out to others. Some may even wave or say Hi to you, they are not hostile in any way.
What I am trying to say is this. Say you are mtf and you go out and about, not trying to present as female. Do you ever think that some people you notice are spending a great deal of time looking at you? They are not giving you funny looks. They just look! I know, this could simply be your imagination, mine included!
Perhaps this is to be expected if you go out in androgynous or unisex clothing. But you are not wearing makeup, fragrances, or feminine jewelry, or trying to pass. You are just being you.
Perhaps they just want to to somehow confirm in their minds if you are female or male.
Perhaps it is also one's wishful thinking in operation here. Maybe you are hoping when they longingly look, that they believe you are of the gender you think or know that you are.

Chrissy