Here are the scenarios that I don't know if i'm lucid or not:

1. In my dream, I was explaining and showing to my friend what is a lucid dream. As we were walking around, I was showing him that I can alter the surroundings which I can, and there was this inverted buildings scene from the movie "Inception" which I showed him and others I can't remember now.

2. Dreams that has a story in it, not sure if i'm lucid but can do anything thought of, and still follow that plot in your dream.. kinda complicated

3. A dream about lucid dreaming?? Like i dreamt something about lucid dreaming but i'm not sure if I myself am aware that I'm lucid dreaming lol.. Like in my first example

I think I have some dreams like that so I can't really be sure