Players who have not yet set an avatar, please update it by going to the left menu -> account -> edit avatar:
Then click on "Upload Avatar" and choose a picture:
Now all you have to do is adjust size and placement of the picture, and once you are ready, click on the green square!
Now if you are level 5 or higher, you can start receiving rains from the chat ;)
PS: not having an avatar may block you from the chat.