iOS 12's most fun feature is hiding in your iPhone keyboard - here's how to create your own 'Memoji'

The most whimsical new feature in the new version of iOS is called "Memoji."

Since last year, Apple's high-end phones have allowed you to transform your face into a cartoon character, and control it with your eyes and mouth. Now, in iOS 12, you can even customize a version for your own face, kind of like Snap's $4 on steroids.

It's not a productivity feature, but it's a lot of fun. 

However, it can be tricky to find. It's not an app, for example - it's basically hidden inside the iPhone's messaging features. If you've ever used Animoji, the feature that lets your face control an emoji character, it's pretty similar.

Read on for how to use Memoji: