Eloquence?
1, preview. Set your own training goal, which must be in line with your current mastery of the product. Pay attention to yourself in training.
Don't talk more about familiar areas and unfamiliar areas. But these unfamiliar places can't be let go, and we must make up for them when we go back.
In the future training, it should be passed on to the students in due course.
2. Let the trainees speak freely by asking questions during the training.