1. Manifest from love, not need. The universe responds to the energy you emit..

2. Find a special place to make your wish. When you make your wish, try to make it at a special time (a time, a place). It is always best to be very quiet.

3. Be confident. When you make your wish, be certain that it will come true.

4. Visualize your wish. Just imagine that you already have it and feel the happiness of having it. Do not give room for doubt, You must stand sure, you ask and the wish is fulfilled. 

5. Be grateful for receiving your wish. Even at the very moment of making your wish. Remember that the wish is already fulfilled, it is only a matter of time before it comes into your life. Gratitude is a great feeling, not only to make your wish come true, but also to attract good things into your life.

Wish good and happy things.. 
Don't think only yourself. Wishing bad things, only attracts negative things.
Don't tell anyone what you wish for, otherwise it won't come true..