Human shadows

I am a shadow. It's quite lonely with no one ever responding to me, I wave and yet no one replies. I have no control over what I do, I move my mouth but no sound comes out. Sometimes I wish I could talk and make friends with people myself, and not have to follow what everyone else is doing. I don't have a name, for no one bothers to speak to me. I am just a form I don't wear anything, I don't do anything besides copy whatever the human in front is doing. When everyone goes to sleep I disappear, or lay next to them. I don't sleep, I don't talk, I don't act on my own. I wonder, are these thoughts even my own? But I can't even answer that myself. I have no gender for I am everyone. It's quiet. It's dark. I'm lonely. I frighten people sometimes... Am I good or evil? Or am I simply nothing at all...? Do I even have feelings? I thought while following my 'puppeteer'.