1. Provide high-quality content: ensure that the content of the open class has practical value, and can solve the problems faced by restaurant owners or provide useful experience and knowledge. The content can include business strategy, marketing, human resource management and other topics.

2. Personalized interaction: In the open class, take the initiative to interact with the restaurant owner, answer questions and provide personalized advice and guidance. In this way, we can establish interaction and contact with the participants and feel professional knowledge and care.

3. Provide follow-up support: Don't interrupt contact with participants after the open class. You can keep in touch through email, social media or online platforms, and provide further support and resources.