The Magic Mirror

There once was a magic Mirror and if you told it a lie you would disappear. So A Brunette, a Redhead and a Blonde tried it out.
The Brunette goes up and says, ” I have the best lookin eyes in the world” And POOF. She disappeared.
The Redhead went up and said, ” I have the best legs in the world” And POOF. She disappeared.
Finally the Blonde went up and said, ” I think…” And POOF. She disappeared.