Alright....I had another lucid dream the other night (my sixth total) and the same thing that happened last time happened again. I realized I was dreaming (by slapping a guy in the face to see how he'd react....I was pretty sure I was dreaming but i had to make sure ) and at once as usual I wanted to fly, since I've never successfully been able to do so. And once again as soon as I said the word fly I started getting the vibrations all over my body. I then "woke up" in my bed seeing through my eyelids and having vibrations all over my body. I understand this to be the beginning of an OBE...but dammit!! I just want a lucid dream that I can stay in for more than 2 seconds. So my question is this: Once you become lucid how do you stay in the dream? Any actions you take to do so, or is it just a thing that comes naturally to everyone else? Any info will be greatly appreciated.

Thanks