I am QB

And you can be too, if you come over! Not as in quarterback, but as in "C'you be Baby George's doctor?" "C'you be Floppy Bunny's teacher?" And my personal favorite, "C'you be the cashier?" In writing "C'you Be" looks slightly French--or maybe Cajun?--so you can just call me QB.

Yes, that's just a cute way to say Rosemary is doing a LOT of re-enacting/repetition of life events: doctor visits, dentist visits, grocery shopping, cooking, school, and playgroup.

Doctoring Baby George by giving him a bamboo-stick flu shot:

Chef Rosemary pondering what to put in her stew. Probably result: SillyBandz, necklaces, seashell, and wallet. Delicious.