Progress (again!)

Bilby has made some real developments in the last couple of days. She's now waving with regularity (although, she does usually face her hands towards herself). She's even starting to do some actions in response to 'Twinkle Twinkle'. We're really stepping up our use of sign language in response.
She still ooches, rather than crawls, but she is moving onto all fours a couple of times each day, before then lying down again.
She's making full use of the furniture in the loungeroom to stand up, and is occasionally managing to get herself back to the ground again.
She's making her wishes known with regards to getting picked up and put down.
She's loving her food, since we stopped giving her individual foods, and moved her onto what we're eating... much more interesting:-)
We're hearing a wider range of sounds—including occasional 'ma-ma's when she's not crying!