Lyric discussion by 1234Kiwi 

Cover art for Little Blue lyrics by Beautiful South, The

To me, this song is about a girl (or a guy for that matter).. who puts on a happy face but is obviously not happy inside. And the song is about someone who can see this and is explaining the irony of how she's smiling but her eyes show that she's unhappy. And all the examples he uses are examples of logic and reason.. as opposed to Little Blue whose expression is not logical. Hope that made sense :/