Reactions with dream characters

I find this to be an interesting thing to do. Interacting with DC's. I haven't yet had a full conversation with one. But I have chatted with some
This is from my lucid dream last night, could this mean something or just a figment of my imagination, has this happened to you. Please read:
So in my lucid dream I started in this building but somehow I appeared at my moms house, I went outside and jumped at the start of this hill and I started to fly, then I saw two little girls who were about six years old. One of them was like "woaaahhhh how are you doing that!" and I was like "I'm in a dream!" and she was like "I'm dreaming too, why can't I fly?" then I tried to teach her how to fly and we departed and I continued on with my lucid dream.
The thing is she said she was dreaming too, I do not know this girl in real life. But also a few weeks ago my mom had one of her first lucid dreams (once I stared studying I and trying it, I always tell her about now shefinally had one) but she said she was flying over he ocean and there was people flyin with her who said they were dreaming, and she said there was people swimming who said they were dreamin but some didn't say they were.
I just think it's interesting, does it mean something, has it happened to you?

In my earlier lucids I'd tell dream characters that they weren't real; some would say "oh well" and others wouldn't care. I didn't come across many that would get upset and argue.

Now, my DC's reactions are based upon expectation so they do what I expect them to do.

I would say it was just a DC and not another dreamer (I myself don't really believe to shared dreaming) but of course this is just my opinion.
As for have I had anything like that, haven't had a lucid yet, so... no. :S
Also wouldn't say that it means anything for DC to say something like that, I hear there is a few which are different from the rest, like that girl.