Another sign of Joey's transformation - his attitude towards his swimming lesson.  In the past, Joey has been reluctant to try anything, probably because he was afraid of failure or perhaps because following complicated instructions or staying focussed as too difficult.  But in swimming class, he listens carefully to the instructor, the large, forceful but friendly Colleen, does what she asks and really tries.  And largely succeeds, to the extent that Colleen said that he was a 'natural' swimmer.  It is great to se this, and the look on Joey's face when he succeeds in doing something.