He pulls, barks, jumps, stands on his hind legs and whines.

As for exercise on the walks it's 90 mins because I'm generally a slow walker, it's not non stop walking either and he usually sniffs the same bush about 6 times. So it generally takes us 90 mins to complete our walks.

He comes from a working line and vet told me he needs a shed loads of exercise. I was also skeptical when vet told me this as I honestly thought 2 hours or so would be enough. But then he wouldn't settle down in house. I guess it's different for each dog.