Having attempted this thing they call sleep training myself not so very long ago (successfully, then unsuccessfully, then successfully again), I know it's not as easy as it sounds. It completely depends on your baby, your tolerance for tears, and your own threshold for functioning on minimal sleep. So listen, nod, offer a suggestion or two if she asks . . . but don't tell her what she's doing wrong and how easy it was for you and your baby. That's not what she wants to hear.