1. You can make a questionnaire first, prescribe the right medicine according to the survey results, and sell the card to those who need it, while ensuring the credibility. As soon as the word spread, the students naturally came.

2. Ensure credibility and visit large enterprises. In the current financial crisis, a sincere attitude will often get twice the result with half the effort. Make friends with potential customers even if you don't sell cards. Once others need you, you will be the first to think of you, and the card will naturally sell well.

3. Only sell greetings, old customers, potential customers and new customers: if there are promotional activities, various happy events, a timely congratulatory phone call and gifts: you will receive unexpected surprises, then the marketing amount will naturally rise!