1. purpose difference: the purpose of recommender is to introduce people to the company for an interview or to understand products, help people find jobs with suitable background and interests through recommendation and guidance, and promote the company to establish contact with potential employees. The spokesman's purpose is to advertise products, raise awareness and attract more consumers to buy them.

2. Responsibility difference: the referee is a temporary role, responsible for the recruitment department or the employer to promote the connection with the candidate, evaluate the qualifications of the candidate, screen the resume, arrange the interview, and provide information such as job requirements and working environment. Spokesman plays a long-term role, and is recognized as having influence on brand image, and can effectively spread brand value to the public. As a public image, spokesmen need to actively participate in advertising activities, make speeches in the media, attend relevant activities, support the characteristics of the products they endorse, and provide positive feedback to increase their popularity and attractiveness.