Most amusingly Crystal has started 'speaking'. This involves a low gutteral, multi key growl, culminating in little high level yap type sounds. The crescendo is accompanied by much eyeball swivelling, tail twitching and hind leg stilt dancing!
These activities normally ensue following the humans eating, or especially when it's play time with the everlasting 'squeaky ball' throw/fetch routine. The prelude to this activity entails much reverse snorting and front leg hopping, rather like a demented 'Highland reel' dancer on steroids! She's now a month or so off her first birthday and seems to be becoming ever more eccentric.
Apparently they are supposed to mimic their owners character so I've heard, so can't understand where it comes from at all!