German Shepherds are moderately active dogs and are described in breed standards as self-assured. The breed is marked by a willingness to learn and an eagerness to have a purpose. They are curious, which makes them excellent guard dogs and suitable for search missions. They can become overprotective of their family and territory, especially if not socialized correctly. They are not inclined to become immediate friends with strangers. German Shepherds are highly intelligent and obedient, as well as protective of their owners. The Breed is very popular by its guarding nature.