The simple iPhone prank that will drive your friends and family crazy…

Here's a way of really annoying your iPhone-owning friends and family members.

1. Open up the Settings app on your iPhone's home screen.
2. Tap the General section.
3. Tap the Keyboard section.
4. Swipe down to the bottom and tap the button labelled 'Add New Shortcut...'
5. Under 'Phrase' type the phrase you want the shortcut to expand to, and under 'Shortcut' type the shortcut you want to type instead. For example, if you wanted 'Yes' to expand to 'No', you'd type 'Yes' for the shortcut and 'No' for the phrase.
6. Tap save when you're done.

This girl in America messed around with her mother's phone and changed 'No' to 'Hell Yeah' and this is what it looked like... Obviously, the process of getting hold of someone else's phone and then managing to get past the passcode will be a difficult one. But just imagine the fun you could have with this prank up your sleeve?