There are tracks scattered on some of his albums that are fun or humorous--Look Sharp! has a few also, especially those with a catchy melody (like "Happy Loving Couples").I'm such an avid Joe Jackson fan that it's hard for me to pick a sole favorite (obviously, I love all his biggest hits, especially "Breaking Us in Two," but I'm just as fond of some of his deeper cuts like "Happy Ending" or "One to One" or "Be My Number Two" or "Another World"), but nothing in his catalog is quite as playful and sparkling like "Steppin' Out" is.
"Hey, and don't play that piano!" "Cancer" is also a fun track (probably because it hits so close to the truth)...
We might have to do a Joe Jackson thread here soon...