13. The one or more non-transitory computer-readable media of claim 10 wherein adapting operation of the software comprises changing at least one aspect of visual appearance of an avatar of the user based on the play personality of the user.
10. One or more non-transitory computer-readable media storing instructions which, when executed on one or more computing devices, cause the one or more computing devices to perform a method comprising: obtaining information that indicates the play personality of the user; wherein the information indicates which play type, of a plurality of play types, satisfies the user's need for play; wherein the plurality of play types includes two or more of: Object, Pretend, Social, Rough and Tumble, Body, Exploratory, Celebratory, Competitive, Ritual, Narrative, Fantasy or Games/Gaming; determining that the user is using the computing device; and during execution of software that generates output displayed on the computing device while the user is using the device, adapting operation of the software based, at least in part, on the play personality of the user.