So I've taken over caring for my mother's 13 year old dog for about 6months now, and found out she never walks him or takes him to the dog park. Luckly! He is dog friendly but I had to train him how to walk on a leash with a choke collar! So once I had established good walking skills. I decided to take him to the dog park for the first time. It went great! BUT now everytime I walk him, he will pull and get excited when another dog walks by. I tried asking him to stop and sit, but he'll just sit there and whine, and turn his head to look at the other dog. Or if we try to walk past, he'll spin circles whining, and wanting to pull.
After a couple of weeks of trying to correct this, he didn't pull when dogs walked by. So I took him to the dog beach to play, and afterwards, the same thing happened all over again for days. He wants to pull to smell/play with the other dog walking past.
What do I do when the dog park/sociable outtings seems to make him too excited when seeing new dogs