You can improve her outlook regarding play. The easiest way is to have another dog around her doing those things.

The rescue or which I foster pulls dogs from puppy mills. These dogs are up to 8 years old and haven't a clue how to act, or react, in normal "doggie" situations. The rescue requires that anyone fostering one of the puppy mill dogs already have a socialized dog in the home. the rescue dog will emulate the behaviour about him or her.

Maybe a play group, doggie day care, or a dog park will help her to see what dogs do with toys. Or you can get down and demonstrate!