So far he has been a chewer, I mean literally everything if fair game. He is social, and brave, as well as curious. Duke has so far greeted my horses, jumped into an alpine lake, chewed his way through several cords, sandals, and socks : ). He is vocal and is affectionate. Definitely has an independent sense of what he will and won't, but he's coming around. I also have a 7 yr old Bull Mastiff and Duke loves to try and get a rise out of her. All in all, a wonderful, intelligent dog.