Hello, I recently a dog out for a walk. The dog was a very nice and has always, when I called him and he came by himself, on the side of my legs pressed with his upper body, partly so that I almost fell over. I found it very funny, of course. How important is this behavior in the dog? And what it means when the dog suddenly howls like a wolf? He calls his own kind, he seeks contact with them? Thank you for your answers.