Who knows what your next door neighbor knows, but you might think that your neighbor would have reason to have an idea that you are transgender. Of course that depends upon how much of a small town mentally exists where you live as to how much your neighbors pay attention to your life. They did feel that they knew you well enough to invite you over for a social evening where drinking alcohol was involved and people who drink sometimes reveal more of the personal side of themselves than they do other wise.
But it is better to be safe than sorry, and never good to put a potential friend on the spot.
Sometimes I wish for a rude show of disapproval of myself being transgender, than a polite silence which hides what people are really thinking. Then at other times I wonder if the world is changing faster than I am, and there are more people who could careless that I am transgender, and they are wondering about why I am so paranoid about being transgender.
I dress female all the time and very often am wearing a skirt, lipstick, and heels around the house. I am always wearing a padded bra with the bra straps showing. When my nine year old's friends need their bikes fixed they often times wind up at my door looking for me to fix them because they know we have wrenches and a tire pump, I am always girlish and most times they don't seem to care because they just are happy to get their chain put back on or their handle bars straightened. My kid calls me his dad. Who knows what they really think about me, or if at this point if they really care? Who knows what they say to their parents? We live in public housing right next to the office and the housing managers have seen that I wear a bra. The housing manager has never said anything about it, so I figure that my neighbors aren't complaining about me. If they were and it weren't OK, the manager would at least question me about it.
So what is it? Am I just accepted as being that's just Michelle, kinda weird, but a nice person so I don't care how he/she is dressed. Or is it Michelle, is just a transgender female, and she has a right to live here and she is a nice person. Or is the manager thinking egads, I have to be nice to this person, because I like my job, and I can't do anything about it until he/she gives me a reason to kick him/her out.
I don't really know. So what's going on with your neighbor, why would they invite you over to socialize and have their son who is near your age there and not care about him coseying in up to you. Who knows? I hope you have a tactful way of finding out?
Life can really be a mystery, can't it.