Bounce up and down on your elbows a little and bark some more. After a minute or two, she might start to bark back. Run a few steps, turn back toward your dog, get down, bark and invite her to play again. Then run a few steps more and repeat the whole process. Even the most socially deprived dog will respond eventually.
Some games have a different meaning in dog language than they do in people language.
Puppies wrestle with each other as soon as they can walk. Wrestling and playfighting is fun for dogs although it can sound very fierce to us. We're more fragile than littermates and we can be hurt by rough play. Most importantly, we want our dogs to know that we're people, not littermates, and should be treated with respect. Playing these games can give some dogs the mistaken idea that leadership of your family's pack depends on who's the toughest in a fight.