Hey Nakara! Welcome to Dreamviews!

I think one of the easiest techniques that requires the lest amount of effort is MILD. MILD stands for Mnemonically Induced Lucid Dream. It was originally created by Stephen LaBerge. One of my favorite MILD tutorials on the site is by the member, Naiya. Check out her tutorial by clicking here. It should explain things pretty well. Here is the official Dreamviews Wiki tutorial. Hope this helps a bit. Best of luck