Expend your first finger of your dominant hand, and now you've got 5 seconds to trace
out a capital letter 'Q' on your forehead.
Some people draw the Q in a way that can be read by someone facing them, with the tail
on the left side of their forehead.
If you did that, then you tend to be aware of how other people see you, you are happy
being the center of attention and you are a good liar.
Other people draw the Q so they themselves can read it, with the tail on the right-hand
side of their forehead.
If you did that then you tend to be more of an introvert and not very good at lying.
So if you want to gain a quick and fun insight into someone, just ask them to draw a Q on
their forehead.