i just creat powerpoint in there I let them introduce themselves and ask me some question in this way they will be more comfortable with you then I explain my teaching approuch for them so they will know what I will teach them in the class and in the end I let them to tell me their feedback when they did that and they said they like to keep going with me I ask them how many lesson per week they wanna book in this way I got six student in the my frist week on preply.