Yes, I wonder this, too. I often check with my counselor to make sure that people can't "just tell" that something happened to me. He says they can't, but after interacting with me in certain situations, they probably figure it out. Ugh.

I went out to lunch with an acquaintance this weekend and as we sat down, I was followeing her and she stepped aside and said, "Do you want to sit there so your back is to the wall?" I laughed and appreciatively took the seat. She and I have only been out together a few times, but she's obviously picked up on how nervous I can get!