Why do we listen? How do we listen? What is listening anyway?

Question:

Why do we listen? How do we listen? What is listening anyway?

Could anyone tell me what they think?I think the answers are meant to be more or less in the philosophical sense and not the scientific sense. Our teacher asked these questions while we were discussing "Communication".

Additional Details

3 days ago
I am the listener. Please be specific please >_<

3 days ago
I think I asked too much, could someone please answer first, "Why do we listen?"

Best Answer - Chosen by Asker: 3 days ago
I am the listener. Please be specific please >_<