I find it most amusing that they both copy Buffy and Angel's 'get away from our precious goslings!' stance when they see either of us coming. This entails extending their necks and, in the case of Buffy and Angel, hissing in a threatening manner. In the case of the goslings, it's more of a cute squeak.
This brings me nicely to how their little bodies are changing shape. When they first hatched they were ovoid little balls of fluff with a head and feet. Now they're developing longer necks and their bodies are elongating into a goose shape. They've still got quite a bit of growing to do though.
Thanks for all the suggestions of possible names. I'm actually thinking of calling them Snowy and Sunny, as one is distinctly paler with a white bum, and one is darker with lots of yellowy bits. I'm not sure if this may be sex-linked, as I have no clue as yet to their gender - another good reason for choosing non gender specific names.
Anyway, here's a couple of photos so you can see how they're growing, including one of them doing the 'big scary gosling' pose.
Finally, for Herbert fans, I have at last managed to get a photo of our handsome hero, in typically laid back style: