You may not know it but your Halloween costume says a lot about the part of your personality that you normally hide.
That's according to Dr. Scott Bea, a psychologist at The Cleveland Clinic. He says you hide the majority of your personality to others, "They say we can only let about 20% of our real personality leak out in our workplace. When you're being a parent you have to conform to a certain set of standards, but on Halloween we get to play a little bit, so we can expand the range of who we are in a real pleasant and fun way."
Dr. Bea says if you choose a celebrity costume, you are looking to be more popular or have more power. If you wear a scary clown or ghoul-costume you are looking to let out some of your dark side. If you wear a sexy costume you are showing a side of yourself that you normally hide away.