[Ebonyfox]

Hello I'm kinda new and I have a small problem with my kinda new friend.
I adopted Sheba from the animal shelter four months ago and she is such a sweetheart!! She's a black lab mix about a year (or less) old. Well Sheba is really smart so with the help of a friend we started training her.

We are working on Back up which is proving to be really hard! She just doesn't get it and I don't know how to explain it to her. I tried to tell her stay, and walk up to her after saying "back up" but instead of taking a step back, she sits. When I tell her that isn't it she extends a paw. When I try to fix it she give me the puppy eyes and starts to nuzzle me!!
Anyone know how I can make her back up?
Thanks!

~Ebony