Um, not sure if nervous tick, but more like ticked off! I don't know if I want to know what she is saying. Some things are better left unsaid. The hair and outfit look great, and the beach is very pretty and should be calming. Could it be she wants to remain a Steampunk Blum, with her Steampunk stuff on? Maybe she found a new Neopian sickness and will require a new cure...
Grumblemumbles - when your Neopet's mouth keeps moving, but you can't make out what they are saying. Can happen when the mouth moves faster than the mind can think.
Cure - Super Slow Lip Balm. One coat of this, will slow down the mouth back to its normal speed.
In all seriousness, it looks like something for Donny to fix. Maybe a letter to the NT Editor?