When users enter the store to consume, the merchant guides the users to scan the code to participate in various preferential activities, such as coupon collection, scratch cards, big turntables, etc. After the users participate, the merchant's pre-prepared promotional videos will be automatically posted on their own Douyin and video accounts, and the store's geographical location can also be included. The more users participate, the more people will post the merchant's videos, thus achieving the effect of local screen domination.