Secondly, the price is set at a catty, which can not only ensure the profit, but also need not change, which is suitable for consumers' psychology of being eager to buy and afraid of trouble at that time. Third, hiring newsboys to sell in the crowd not only saves marketing expenses but also facilitates customers, which is an important reason for the success of consumption. Imagine that if the operator sells in a fixed booth, it will not be so successful. Then the right time. Before the wedding, whoever buys will get the benefits immediately, and buyers will certainly flock.