How do I get Rhyme Suggestions?

Open or start a Project and tap the notepad area to trigger writing mode and tray up your keyboard.

You will notice a toolbar above your keyboard. Rhyme Mode is the looking glass icon on the left:

Tapping this once will activate Rhyme Mode and you will see suggestions for words as you are typing. 

Select a word by tapping on it and the last word you typed will be replaced:

Tap the Rhyme Mode icon again to deactivate Rhyme Mode and stop seeing suggestions.