One thing you can do to induce lucid dreams is Reality Checks. One popular one is, pinching your nose, and trying to breathe through it.
One I've been doing I call the Mirror RC. What you do is whenever you see a mirror, touch it, and push on it. If it's a dream, your hand will go right into it, and you can go through the mirror to another place.
If you keep doing RC's in your waking life, you will eventually do them in your dreams.
If you touch a mirror, and your hand goes right in, or the mirror ripples, you are surely dreaming!