First of all go to the home screen of kika app as shown like below...Next you will see settings button at the bottom right corner of screen...click on it..
Next you will see a list of settings and find Keyboard settings...
Now look at the bottom right , a blue keyboard button can be seen..
Demo keyboard is available to see the changes you make in settings...there is a blue button ..when you click on it a demo keyboard appears and you can see the changes there...
