1, sharer role. Teach industry experience, share it with students, and promote their further growth. This is also a very important role.

2. The role of the coach. Inspire them to seek solutions, guide and supervise the transformation of training on the spot.

3. Preside over the role. Don't tell the audience by yourself, but mobilize everyone to participate. Generally, the best way is to share 50% of the time, speak 50% and discuss and rehearse 50%.

4. The role of the teacher. As a teacher, you must set an example, don't spread negative energy, speak from a positive angle, and don't bring too much emotion into it.