What you want to ask is the impact of hidden interviews on online celebrity catering? The impact is as follows:

1. Determine which aspects of online celebrity catering should be interviewed and observed implicitly, such as customer behavior, dining experience and taste of dishes.

2. Enter restaurants in secret, observe customers' behaviors and reactions, and conduct hidden interviews with customers to understand customers' views, evaluations and experiences on online celebrity catering.

3. Collate and analyze the collected data and feedback, and find the impact of online celebrity catering, such as customer influx, word-of-mouth communication and sales growth, and pay attention to protecting customer privacy and legal interview requirements.