help me pls.

At the bottom of your response on the left side you will see a line reading ' add an image ' The thing is you need to have a number of posts before you can use this, or so I believe. I used to have the same problem and then, all of a sudden it started appearing. So I guess you need a certain progress before you can do this. Remember, at the bottom, on the left, in line with the ' preview response ' and ' post response ' on the right.

Go in preferences and you can put your avatar pic thata you chose!