Grrrrrrr Bark! Cool little munchkin. She looks like a smart one. You can usually tell by the eyes. They will stare at ya, eyes wide open and they don't get distracted easily.
My brothers big 4 year old Shepard is the most mildly tempered dog that I've seen. Not the smartest but definitely mild tempered. She barks but only when she hears something she doesn't like. Like when someone knocks on the door she gives out a couple good deep barks and a little growl.
Moms little runt of a dog tries to bite it and Bella completely ignores the little barky mofo. My niece climbs all over her and tries to ride her like a Horse. She is about as big as a damn horse. She has to be close to 150lbs lol