The little guy should be the joy of life and run back and forth like a fluffy snowball. But for now he is a little hesitant and unreserved.
He is a very sweet and very tender dog, who will need time in the beginning, not to approach you, but to approach you and be sure of what he is doing.
He is quite afraid of other dogs, and although he wants to participate with his presence in what happens, he usually hides and avoids other dogs, but never growls at them.