Jumping at other dogs

What little beauty, now he's put a smile on my face.

 

I have some thoughts but before I reply it would be helpful to know if this ^^^ is all the time, or just when there are other dogs around?

I would say though, you have him on a lead so maybe it would help to be firmer with other people about keeping their dogs away.

 

Aw a little Ewok ....

 

If it's getting worse I would suggest looking closely at how you are responding when you see another dog coming. Often we become nervous and our dogs take their cues from us, no matter how subtle we think we're being. The slightest tension is transmitted to the dog who then reacts more, and so the cycle continues. Victoria Stillwell has a ton of really good examples of how to break reactive behaviour.

 

You are taller and can see further. When you spot an approaching dog, move yours to the side furthest from that dog, and walk to a distance from which your pup (what a beauty!) won't react. Don't say anything, don't do anything else, don't ask for a 'sit' just increase the distance until your pup is calm. You can retrace your steps or go to the side. Then stop and allow your pup to watch the other dog - if he reacts he's still too close. As the dog goes past (assuming it too is on a lead) reward your dog with whatever he finds rewarding. Thus his interest in the dog is allowed, but not diving at it because he is sufficiently far away for that not to be worthwhile.
Practice moving away when there is no other dog too. Then pup learns the art and you become smooth at the move-away.

This isn't going to disrupt his social life because we need dogs to be dog-neutral and ignore other dogs except for specific ones you have vetted and know will behave. Yours really doesn't need to meet and play with dogs, so you are not going to do him harm. He will grow out of this if you ensure his excitement levels are kept low by putting space between yourself and other dogs.