And then there are photos I like where the subject is engaged with the camera and maybe the subject isn't entirely at ease with that but I still like them because they say something more to me. I'll give an example. A photo of mine:
The boy had been playing, he saw that he was observed and that made him a bit shy. I, at least, see that shyness in the picture but I like it because it reminds me of me when I was his age -- the vivid play life that was suspended when someone else is around at least until I determined whether the interloper would ridicule me or join with me. I don't know whether that's something anyone in the world but me sees in the photo but it's there for me so I'm glad I have the photo to remind myself of it and of the importance of giving the literal or metaphorical wink to people I catch off guard to let them know I'm on their side. Which is how this interaction ended. So I'm glad that I can take such photos and dislike rules that would stop me.