Be sincere dont promise anything you cant deliver
2. Concentrate on the benefits to the other person (not to yourself)
3. Know exactly what it is you want the other person to do
4. Be empathetic ask yourself what it is the other person really wants
5. Match the benefits the person will receive from doing what you suggest to what the other person really wants
6. When you make your request, put it in a form that will convey to the other person the idea that he personally will benefit.