Twitter's most recognizable functions that allowed the user to press the heart button to "like" the post and share the post using the "retweet" button. When there are numbers next to the like and retweet icons, the artist promises to draw a new variant of the picture (with the character in it wearing less, having sex, wearing different clothes, etc.) if it gets that amount of likes and retweets.
See Also
Bongo cat - meme images in that characters are pressing like and retweet
