Unless you are some heartless old hermit living in the woods, this skin shouldn't need any explaination.  However, for contest reasons, I'll do it anyway.
        Happy is one of Snow White's Seven Dwarves.  In nearly all versions of the fairy tale, each of the seven dwarves' names portray their personalities.  For instance, Sneezy is constantly sneezing, Sleepy often falls asleep randomly, etc.  Based on this shared characteristic, I bet you can guess what Happy's like ( For you judges that need it clearer, HAPPY IS THE DWARF THAT IS ALWAYS HAPPY NO MATTER WHAT, AND HAPPINESS IS AN EMOTION; HENCE EMOTIONS SKIN CONTEST).