1) I did not observe it bark.
2) It was a medium sized dog. I’d say it was an average sized poodle, although as I previously posted, it could’ve been a mix.
3) It was indeed on a leash.
4) Neither, as far as I’m aware. There was a gap in my observation between the second and final post however. Sniffing the ground was the most interesting action of the dog, although some would say that walking is more interesting. They were on the grass around the edge of the lot. Sorry about not making that clear. I’m sure there’s more interesting smells in the grass than on pavement.