To keep it as short as possible..

1. Write down your desire, like for example "It is my desire to get a lucid dream"

2. Remove all the vowels out of the sentence, so you in this case you would get: "t s m dsr t gt lcd drm"

3. Then remove all letters which appear twice, so you get : "tsmdrglcd"

4. With these remaining letters you create a sigil, or glyph, like these people have done with their desires:

or

The idea is to be creative.

Five: The last step is to charge your sigil. One way of charging it is to look at it the moment you orgasm, and envision the energy of the orgasm going toward the Sigil.

Then just try and forget about it. Try to forget about your Sigil and forget about your desire. The less you think about it the higher the chance your desire manifests itself.

But this is just the basic way of doing it. There are many methods and variations to this method. Best just to Google Sigil Magick and experiment and see which method works best for you. Or Google "Sigil" or "Sigil Magick" on Google Images if you're looking for inspiration.

Also, don't directly involve other people in your desire or statement of intent. Not only is it often immoral but also there's a fairly great chance it might backfire. It is fine, I suppose, to state "It is my desire that this or that person becomes more healthy", but it is not fine to state "It is my will that this or that particular person will come and sit on my penis." It would be fine to state for example "It is my will and desire to meet a girl (or a guy) who likes Shakespeare." Just don't bend other people to your will.