You can always request that if your Session is via screen sharing. In some cases it's best to see the Teacher's face but in most cases we feel that you will be able to focus best by watching the screen and interacting with the teacher because you'll be much less distracted by the looks of the Teacher and vice versa. We suggest that if you want to see the Teacher's face or vice versa, e.g. the movement of the mouth for pronunciation, gestures, etc. simply ask the Teacher. They will be happy to switch it on for you.