1. Create a store of Pinduoduo: First of all, you need to register a merchant account in Pinduoduo and create a store.

2. Prepare an expression pack: Prepare the emoji to be sold, you can design it yourself or buy it from other channels.

3. Publish products: publish products in the store, add pictures and descriptions of emoticons, set prices and delivery methods, etc.

4. Promotion: Use Pinduoduo's marketing tools, such as Pinduoduo's live broadcast, Pinduoduo's bargaining, etc., to promote and attract more buyers.

5. Delivery and after-sales: When the buyer places an order, it will be shipped in time, and a good after-sales service will be provided to ensure the satisfaction and reputation of the buyer.