Williams syndrome is a genetic disorder resulting in a variety of medical a
nd developmental features, one of which is a frequent outward presentation
of substantial happiness. In this paper we describe the unique expression o
f happiness in people with Williams syndrome, with several anecdotes and a
frame by frame conversational analysis. We then discuss this happiness in t
he context of other dimensions of the impact of Williams syndrome, especial
ly anxiety. We conclude with a discussion of the role of genetics in emotio
ns.