Ask the Universe for it. Make your request. Send a picture of what you want to the Universe. The Universe will answer. See this thing as already yours. See How to Visualize. The more detailed your vision, the better. If you're wanting that Nintendo Wii, see yourself sitting down playing a game on it. See yourself feeling the controller, playing your favorite game(s), touching the console. If there's that person you have a crush on, see yourself walking with them, touching or caressing the person, or even kissing the person. You get the idea.
What Frequency Are You On: Everything, including yourself, your thoughts and anything else you may or may not want to experience, is pure energy vibrating at different frequencies. The basic premise of the Law of Attraction is that like energy attracts like energy. You attract to yourself that which you are in vibrational harmony with, not that which you long for or even deserve. Your dominant frequency is determined by your dominant mental attitude, which itself is determined by your habitual thoughts and beliefs. Simply put, a positive mental attitude attracts positive experiences and circumstances while a negative mental attitude attracts those conditions that we deem negative or unwanted.
Good feelings lead to a good reality. Put on your favorite song, paint a picture, have fun with your pet, or think of someone or something that you love, something that makes you happy, and just shut your eyes and dwell on this. These can be called Frequency Shifters, so have a few up your sleeve. Different thoughts work for different situations, so think of a few now you can use later.