Belgian Shepherds are highly intelligent and are bred to be alert and sensitive to everything going on around them, and to develop extremely strong relationship bonds. This means that they need significant socializing as puppies, lifelong activity outlets, and will seek to be with "their human" all the time, preferably doing something rather than waiting around. They can find it very difficult to be left alone. They tend strongly to be a "one person dog."
All the Belgian Shepherd breeds need a lot of activity and close interaction with people. Like most herding breeds, they need a job to do (be it herding, learning tricks, dog agility). The Belgian breeds are intelligent and sociable dogs who can easily become bored with such simple and undemanding repetition. Many Belgians make superb assistance dogs who thrive on knowing that their jobs are indeed necessary for their chosen person.
They are widely considered to be a good looking dog, loyal, intelligent, fun, and well suited to family life. However because of their high sensitivity to criticism or to being ignored, their careful handling and socializing needs, their need for ongoing stimulation and purposeful activity, and their potential, they require a lot of exercise and interaction.