You’re on the phone. There’s a pad to hand, along with a pen or pencil.

As you chat, you may scrawl a few squiggles on the page at the same time, shapes that take form as perfect patterns, images of animals, random faces or any other outline you can think of. If you are doing that, then you’re doodling.

Although a doodle can look like the most simple of drawings, they also allow us to get creative, and some believe they can shine a light on the doodlers’ thoughts and feelings.

Tracey Trussell is a consultant graphologist - graphology is the study of handwriting - who specialises in analysing doodles. She told BBC Bitesize there is a real value to doodling and it can even help us be more expressive.