It depends on how you raise the puppy. They need to be socialized with people of all ages and they will bark when they feel the need to. And yes, they are very alert of everything around them.
Dals are a very energetic breed. They have high stamina and were bred specifically for accompanying carriages. On a daily basis, an adult needs at least an hour-long walk, or a nice walk in the bush where the dog can run free as she pleases. Pups will need a few playdates with a member of the family daily.