The four elements of joy are Laughing, Playing, Dancing, Singing.
If you count the moves required in keeping a hula hoop in the air as "dancing", then I managed 3 of the 4 in this session :-) Next time I will sing a song.
FYI - this is the first time I ever managed to keep a hula hoop up past the initial momentum spin (also demo'd at the end of the video). Very Good, Very Good, Yay!