I like Octocat because some of his features extend past the text and other parts of the element.
From what I can tell, the img margin allows octocat to appear that his features overhang over other parts of the element.
Same as Octocat, I like this item because it sticks out and seems to almost jump off of the page.
Same techniques used as Octocat.
Similar to the octocat and the arrow, the styling makes the image seem like its a ribbon wrapped around the element
I'm not sure I understand how, but it has something to do with the ::before in the class.
Again, this is a very subtle little item on the web page that makes it pop out at you.
Similar to the Ribbons, this uses a ::before to work.