human mood ring

1. A person who really alters your moods. Whatever they're feeling reflects what you feel, because you're that attached to them.
2. A person who can really tell what someone else is feeling just by looking at them. Usually caring. They also get to use the phrase "I know you" all the time.

1."Yvonne is my personal human mood ring. I really care for him, so of course I'm not feeling so great right now...look at him."

2.human mood ring-"Hey what's wrong?"

stupid bitch-"Nothing...SIGH"

human mood ring-"Come on I can tell you're sad, I KNOW you"