Give it a go yourself! Here are the steps...
Start with an oval for the head
Make it big enough to fit her face inside!
Add a nose
A squashed circle with a couple of nostrils
Draw some eyes
Some more circles slightly behind her nose
Draw some chunky eyebrows
Try them in different places to give JJ some blamtastic expressions!
Draw a mouth
Add a sideways D shape under her nose and draw a strip of teeth
Add some eyes
Draw some blobs either side of her face - don't forget the squiggle!
Give her some hair
It kind of looks a bit like she's wearing Pieface's beanie
Add a pony tail
Draw a bunch of sausages coming out of the top of her head. Mmm...sausages.