Effects included:
(1) You have the ability to look at a person's signature and be able to tell which doodle was drawn by them out of a choice of five.
(2) Using graphology you can know enough about a person's personality to make an accurate guess of which words or symbols they'd be drawn to.
(3) Your spectators are each given business cards and asked to write down either their actual job or a job that they do not have on the backs of the cards. They then turn over the cards and sign them. Without having seen who wrote what on the cards Ð you can not only return each card to their rightful owner but you can also say who was telling the truth and who lied.
more details at Mental-Magic.com