The people in the Northeast of Thailand are two different levels of friendship between friends. The normal level is called Moo and if the relationship is close enough to die for the other to be called Siew. The fiends that is Siew between together must through the process and the ceremony of Phuk Siew before being considered as Siew. For this reason, Phuk Siew tradition of the people in the Northeast is campaign to expands generous friendship of people in society.