Hey baodog,
Great subject, I've experienced a few lucid dreams before the trick is to Keep a Dream Diary, soon as you wake up write your dreams down before you forget them, that way you can find dream patterns you have.

Next thing you want to do is a reality check, set an alert on your phone to go off every 2 hours during the day, ( might want to set it to vibration when in work)
when it goes off say to yourself in your mind the magic words "Am I Dreaming ? " then look at your hands and try to push them through a solid object, like when you're sitting at a table or standing by a wall, (People might think you're crazy but it works if done enough over a week lol)

When you touch a solid object in a dream your hand will most likely go through it, and then it will click "hang on I really am dreaming"

That's just a quick method, obviously there's a load of info about this on the web, here's a great place to start with Free Subliminal messaging videos to program your mind to Lucid Dream.
Hope this help you out.
http://www.world-of-lucid-dreaming.com/lucid-dreaming-subliminal-video.html