Lets Enable Emoji - Click Settings
Click on General
Click on Keyboard
Click on Keyboards
Click on Add New Keyboard
Scroll until you come across Emoji then select it.
You should have a check mark
Click New Message
Click the button on the bottom left to change keyboard
This is Emoji
Scroll in Emoji until you see these shapes
Add the clear circles board and text "Wanna play connect 4?"
After you submit to your friend. You then play by copying each others text and adding your game piece until one of you get 4 in a row
Select your color
Then remove one of the clear circles and replace with your color of choice.
Keep playing and have fun