I've been reading about how dogs behave around each other. Higher status dogs will often dismiss lower status dogs by turning their heads and tilting their heads slightly upward (or so I have read.)
Puppies will try to get the other dog's attention by chasing it.
When she got too close, Bonnie put her in her place with a quick growl!
Wish I could growl like that with Darby nips my heels!