What Your Office or School Doodles Mean
according to the British Institute of Graphologists:

FACES: The expression on a doodled face is often a good indication of the mood or character of the person who has drawn it. A nicely drawn, good-looking face suggests you see the good in others. If you sketch weird or ugly faces, you are probably mistrustful. Comic faces demonstrate a desire to be the centre of attention. Child-like doodles of faces suggest neediness. Profiles indicate you’re an introvert.

FLOWERS: Soft, rounded petals around a circular flower centre suggest an amiable, family-centric person. If the centre of your flower is a circle, but your petals are pointy, you are probably hiding a warm heart behind a prickly defensiveness. If you doodle a bunch of perky-looking flowers you are likely to be sociable. Drooping flower heads, on the other hand, indicate you’re burdened by worry. Flowers with round petals suggest an amicable person while hearts mean you're in love

HEARTS: Obviously a romantic doodle. Drawing a heart indicates you’re in love with love. Busy, highly-detailed doodles are often drawn by people with an obsessive nature, who simply will not let go of their ambitions or loved ones. This type of drawing is often a favorite with extreme introverts.

HOUSE: This common doodle indicates a need for security. A neat drawing of a house suggests a secure home life, a more messy-looking sketch (especially one without windows) indicates unhappiness with your home life.
A house pictured on its own on top of a hill suggests you’re feeling isolated and lonely.

SPIDER'S WEB: This can symbolize a feeling of being trapped — or the desire to entice someone into a particular relationship or situation.

NAMES OR INITIALS: Doodling your name or initials is common for those who enjoy being the centre of attention. Teenagers often doodle just their first name or the initial of their Christian name, indicating a desire to break away from the family and do their own thing. Doodling someone else’s name, on the other hand, shows they are in your thoughts — perhaps romantically or because they are a presenting a problem you need to deal with.
Not just scribbles: Initials suggest a desire to be center of attention while boxes show efficiency

STARS: Stars are often drawn by ambitious people. Lots of little stars indicate optimism. If you’ve drawn one big, bold, embellished star, you’ve got a definite goal in your sights.
Neat, uniform stars suggest good mental focus, while freehand, asymmetric stars show an energetic personality.

SQUARES OR BOXES: Drawing a square indicates you want control of a situation — that you are thinking through a problem. If your squares progress to a cube or box, you’re likely to be a very efficient, analytical person who can deal with difficult situations with little fuss.

ZIGZAGS: Just as patterns made up of soft, flowing, curvy lines suggest a romantic, female approach to things, patterns made up of lots of straight lines, indicate more aggressive masculine characteristics.
Zigzags are a particularly common doodle and show energetic thinking and a desire to get on with things.

STICK FIGURE: Commonly doodled by highly successful people, the simple stick figure reveals someone who is in control of their emotions and incredibly focused on their goals in life.