This weird trick could determine whether you or your friends are good liars.

As celebrity psychologist and possible magician Richard Wiseman explains in the above video, just extend the first finger on your dominant hand and, taking just five seconds, trace a capital Q on your forehead.

(Waits five seconds)

If you traced the tail of the Q on the left side of your forehead then that means you subliminally intended the letter to be legible for other people, meaning you are likely to be aware how others perceive you, are happy being the centre of attention and are probably a good liar.

However, if you drew the Q in a way so that the tail was on the right, so that you yourself could read it, then it means you are likely to be an introvert – and not very good at lying.

Of course, Richard Wiseman could just be lying about the whole thing…

Via Metro