Wlodzimierz Jach
Wlodzimierz Jach voted up HappyTwo BeHereTwo's answer

I've recently been watching "The Dog Whisperer."  He trains people, :) and rehabilitates dogs.  I find his tips fascinating.  Here are links that may help "train" you.

https://www.cesarsway.com/dog-training/walking/helping-your-dog-be-social-on-the-walk

http://www.womansday.com/life/pet-care/a1668/dog-whisperer-exclusive-walking-a-difficult-dog-108224/

Here's his main website to browse.

https://www.cesarsway.com

Wlodzimierz Jach
Wlodzimierz Jach voted up Bikergirl Anonymous' answer

It's not uncommon for dogs to act differently on leash as opposed to off leash.  She may need to be  little more socialized while 'on leash' for her to settle down

Wlodzimierz Jach
Wlodzimierz Jach voted up Gator Blu's answer

I have heard the theory that dogs have a fight or flight instinct and by being on the leash you have eliminated the "flight" option, making them more fear aggressive. How you hold the leash can be making the problem worse. By tugging on a leash or keeping it tight can enforce the feeling of … Read more

Wlodzimierz Jach
Wlodzimierz Jach voted up Bikergirl Anonymous' answer

It's not uncommon for dogs to act differently on leash as opposed to off leash.  She may need to be  little more socialized while 'on leash' for her to settle down