. >> ♪ ah ah ah ah >> ♪ la da da di da ta ta da i love your song. ♪ la la la la rosie is such a fascinating. >> this little girl has music in her soul. >> [humming] >> this suggests that there's some, some good memory, uh, there's some good sensory perception and some good cognitive ability. >> if andy and kara are to tap into this potential, they must work hard to look out for any signs that rosie's trying to communicate. >> chicken. >> but they're not yet convinced her words have any meaning. >> she's asking for food. >> no, no, no. >> is she? >> i think so. >> really? >> yeah, yeah. it's interesting, wasn't it? cause we're not necessarily picking up on everything. >> food, toys, or anything rosie takes an interest in, can be used as rewards to encourage her to complete tasks. >> [laughing] >> now, we can, you can face this way, and if she wants, she can come and ask you for it. you say, hold the spoon. >> okay. rosie, hold the spoon. >> if rosie falters, she's given a manual prompt. >> 1,000, 2,000, 3,000, and prompt. you take her hand, and help her hold the spoon. >> hold the spoon. >>