Why do teachers always call on me?

It happens all the time. I am attentive, don't create disturbances and don't talk during the class. But the teachers all the time call on me whenever a question-answer session is going on.

I have tried changing my seats, from first to the last row, but things don't change. And it's not like that they do it because they have seen me breaking rules or not completing my homework in the past. Whenever there is a new teacher or I am new to an institution, I will always be the first student chosen to answer the question. If other kids sharing my desk talk, the teacher would ask me what's the thing going on. I have never had a single teacher that hasn't paid me attention.

What's wrong with me?

Why do teachers always call on me?
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