Add them in you text fields, your messages, your comments, your emails, your SMS, in your tables name, of your views, your columns...
In order to get Emojis, create the dedicated table called Emojis :
A Emojis table appears :
Copy the desired emojis with a Ctrl + C and paste it with a Ctrl + V in the text field where you want to use it :
Here is the result :