I have been using Puffin's idea of awareness to try and attain lucidity. Here's what I do - I developed certain times to focus on awareness.

ex, any time I sit down on a couch/chair/any piece of furniture, I focus on how gravity pulls me down. I focus on how the object feels against me.

Any time I get up to walk somewhere, I focus on how the surface feels against my feet. I focus on how gravity pulls me down after I lift myself up.

All I am looking for is the easiest way to become lucid, and if this is not it, may someone please point me in the right direction?

Also, I had a dream the other night, and in it I was shooting people. I saw the bullets go into their bodies, and round patches of blood seep onto their clothes, however, they were not being affected. It occurred to me in the dream that this was not normal, and I even said to myself "I am in a dream." but I didn't become lucid. Why is that?