White German shepherd puppy in pet obedience school is watchful

alsatian canis familiaris domestic animal breed domestic dog no people pet shepherd dog shepherd puppy alert alertness animal animal breed animal child attention attentive attentiveness breed of dog cub deserted dog dog breed domestic animal empty hatchling herding dog juvenile no one nobody pedigree pedigree dog pup puppy purebred purebred dog sheepdog suckling thoroughbred thoroughbred dog uninhabited watchful white young young animal youngs youngster yuvenile