... and the other person didn't even know what they were saying...
I had an appointment with my GP today. I came out to him last year, and at the time he pretty much dared me to wear a dress to the next appointment. I wore a skirt instead to that next appointment (because I dress for me, not "on demand"), but clearly I made my point that it all was real, that I was Out, and that it was Pretty Serious for me. Since then, I've worn skirts or dresses to my appointments when convenient, and my normal stealth work clothes if I'm in a rush.
Today was a day for wearing a black suit/dress, together with my regular hair and earrings and a bit of lipstick. Nice, but nothing fancy.
I entered in the office, waited a few minutes for the receptionist to be available. She said "Hi", so I went over to confirm my attendance and get my turn number. She looked at my for a short time, then scanned down her list of appointments, and looked up at me and asked, "Do you have an appointment?". To which I replied, "Oh yes, at 10:20." She looked down in the list again, read off the patient name, and you could practically see the light-bulb turning on in her head. She said my male name, and then said, "Sorry, I didn't recognize you". This is the same receptionist that has been there for at least the last 5 years, and she's seen me dressed before.
The implied compliment was that I've finally started looking different enough, femme enough, that even someone who has seen me dozens of times didn't recognize me. This is a bigger step than it might sound, as normally I am recognized quite easily even when fully Dressed... to the point where there has been hardly anyone who has not recognized me.
It was a small thing, but it made my day.