lucid

So I've wanted to experience a lucid dream for quiet some time and read a wiki how about ways to improve your chances of becoming lucid in your dreams, and one of the steps said to look at your hands and say "this is not a dream". I've been doing that often enough, but last night I kind of became aware I was dreaming. I was running away from a collapsing building and I suddenly saw my hands and thought "this is not a dream" and I found myself in my living room? I realised that I could control my dream and a great sense of power came over me, I tried to move things without touching them and this worked with small items but nothing large like the sofa, so I tried to materialise things and that didn't work either. I then went out into my kitchen where my brother and his friend were and I tried to show them why I could do but it took ages for me to move anything and when I did it was only a coin, them they left and two of my friends showed up, and then lots of other people and I forgot about the lucid dream? It's hard to explain really, I know I wasn't lucid, but can someone explain what happened? And if you have any tips on how to become lucid easier or more effective than the hand thing, I would appreciate them!