I host an annual Christmas Party
Every year I host a Christmas party for those of my friends who have no family nearby or have no other invites. They all know that I am a nudist and most of them have seen me nude. Eventually, sometime during the course of the day I end up nude. It's nothing new.
I generally will open the door nude or walk friends to the elevator when they are leaving nude. Once when the party was waning down and a few friends were leaving I walked them to the elevator and as we were waiting there a neighbor couple came out of their apartment and walked around the corner and saw us standing there, they looked at me and laughed and said, "It must have been a fun party". They never mentioned it again but always smiled and had a funny look in their eyes when I saw them.
The following year, a week before Christmas I ran into them in the garage and invited them to my party. They became very uncomfortable and said that they were going out of town for Christmas. I thought, oh well, your loss. LOL.