Ervin has the best smile. Fitting for a very friendly loving dog. He just loves to be petted. This guy likes to bury his head in your lap or on your chest. When out and about he does pull on the leash and can be a little jumpy. But with a little leash work he really improved. If he is jumpy you can have him sit which he does really well. While sitting he loves to shake with both front paws. Ervin's tail seems to be wagging all of the time. Just a happy fellow.