You can watch this technique from below video. Take any dictionary, read 10 to 20 words (depending on your capability) per day, try to visualize them using below technique, memorize your visualization 3 - 4 times, write them down on a paper before you are going to bed, and viola you will never forget them in your life.
Please let me know your views on this video. It will help me in making more. Happy Watching :)