While following the lizardmen, Yale was happy about having told beforehand everyone about his transformation abilities and the fact that Wyba could change her form because that avoided that the others were shocked seeing those transformations.
Of course, the day Yale and Wyba showed their half-beast forms for the first time, Nurvey almost turned mad of happiness and spent quite a bit of time touching the ears and tail of their half-beast forms, which irritated Yale quite a bit despite enduring it till the end.
Moreover, Yale even heard Nurvey speaking with Julie, and he felt that Julie mentioned something regarding making plushies of the half-beast forms of Yale and Wyba, but Yale decided to ignore that topic since he felt that there was no way they could produce them well in the ocean. Furthermore, even if Julie managed to make them, Yale still preferred to not know about it.