At the bottom right of the chat screen, you will see these icons:
This is what each icon represents:
This icon is your ‘Friends List’
This is the ‘User List’, clicking will load the names of the users in the particular room that you are chatting in.
This is the ‘Lobby Icon’, clicking this will load a list of rooms and the number of users in each room.
This icon is to send your message. This icon is the same for posting a message to the main room or in a private chat. Using your keyboard’s ‘enter’ key can also be used.
Using this icon will allow you to post an image into chat. When you click this you will bring up the familiar upload/download dialogue box which permits you to navigate to the picture you wish to post in chat.