Why does no one hear me?

Why does no one hear me?
It's as if I've disappeared
Why does no one hear me?
I think my words are clear

I'm invisible to the eye
Just watching my friends go by
I shout so loud
Can't they hear me?

It'd like I'm in a vacuum
Where my words don't travel round
I sit here in the corner all quiet
I have given up all hope

As i watch my friends move on
I'm stuck in my settle state of mind
They don't notice i am gone
But just keep living on

I can't express my feelings
'Cause no one seems to hear
Locked out by a see through wall
And no one answers to my call