I have noticed that there are a lot of complaints on how to use chat. This guide is for mac computers!
How to chatEdit
First you open up the chat icon. It is located in the bottom left corner and it looks like a speech bubble with three dots in it. Now you click your cursor in the empty box at the bottom. What happens next depends on if your chat preferences are set to Quick Chat or Easy Chat.
When you click in the box at the bottom a straght line will appear there. This means you are set to type. Type what you want to say and then press enter. Quick chat is very strict and only pre-approved words will work!
This is the easier option. When you click in the box at the bottom, a menu will appear on what you can say. First, subjects will appear. Click on the subject, and then phrases will appear. Click on the phrase you want to say and then press enter. There is a limited amount of things you can say on Easy Chat, so don't be sure that what you want to say will be there.