Can you guess what "They" are?

• Artist: Cerbrilla
• Description: It's kind of a free verse poem/riddle that I came up with almost 2 years ago. It just randomly popped into my head. I thought I deleted it until I refound in on my DA account. I hope you like it. c:
• Date: 08/31/2013
• Tags: they

The louder they are

The more scared you seem

The quieter they are

The less you seem to care

But once they stop instantly

What will you do then?

Continue on like nothing ever happened..

Or wonder why you heard them..