to verify that you are a real person not a fake account ,

There are some reasons: 1. To communicate with someone, you use some parts of your body to get your points across. In real life situation you use your hands, face, eyes, head, shoulders etc. in order to be as clear as possible. For example, you wave your hand to attract a person, keep a straight face to show that you are serious, wink an eye at your friend to convey some shared secrets, nod your head to show your understanding, and shrug your shoulders when you don't care about something. 2. You use your eyes to lip-read when your ears fail to get the words clearly. 3. Naturally when you hear someone talking, unconsciously, you search for the person. It is as if there was something missing that annoys you. 4. With video chat becomes more enjoyable. 5. Some people are perverts; they are not looking for language partners. They are actually looking for their potential sex objects.

with my idea , with see the person , you can introduce the person in behaviour and emotions also web cam is a deal for undrestanding each other , but some times for bad like

Honestly i dont think its necessary to use webcam while discussion. It should be the decision of the learner. If the person learning is comfortable then we can use it but only when needed. I mostly use webcam when i give someone lesson related expressions or gestures otherwise its completely irrelevant,

I want to improve my oral enlish ,so...