Thank you Jac – I did back some of them. Just to let you know (Raymo showed me how) if you run your mouse over the emoji you want it flags up with the word you need to type in. So the thumbs up emoji flags up with “colon(:) good colon (:)” and if you type that in, when you submit the message the 
will automatically change into the emoji. Hope that makes sense. 
Basically, you need to type in exactly what you see in the flag box.