If you want to add an emotion, make a comment with the image or add it by yourself if you're sure how to do it. See not used public emotions for emotions that are rejected for now, but otherwise follow the uploading art rules.
How to add: All images on this pages which are in the beginning of a line will be a public emotion that anyone can use when entering text into textareas. Important: Only the image should be on that line and the line mustn't have any space in the end or before! Examples with a space in the start (to disable them):