Persuading

Have you ever had to persuade someone?  Once, I was working at fair and I had to convince to Boing provider to he gave us a fridge , because not to all people obtained a fridge, matter of luck. 

Then, when I was talking with him, I made sure to let him talk more and that is a trick in business. You have to let people talk and people answer their own questions. 

Example: The provider said, "I have only 3 fridges", then I kept quiet, he stayed thinking, then at last he said "Ok I'll bring you in 2 hours"