I have a part time little girl here, who just turned 2, has been here a month ( 2 days a week), who has VERY limited vocabulary ( hi, bye, mama, dada, blue and bye) and makes animal sounds ( moo, baa, etc), and she grunts a lot, but what concerns me is that she doesn't indicate yes or no to any questions ( like- are you all done, or even asking just-done?)... Apparently mom and dad said she doesn't at home either. When I ask her anything she just looks at me, no indication she hears me..

She is slowly starting to respond sometimes to simple requests (get your shoes please etc) although I need to ask repeatedly 5-6 times or she may just be following what the other kids are doing ).. She hears sounds outside, seems engaged in circle time, enjoys watching the other kids play ( and starting to interact with them more). She cried repeatedly throughout the day first 2 weeks, but good now.

She's had little experience in care previously ( just daycare at church).

I read to kids, we do circle time songs, finger plays, I use baby signing, she responds to claps( turns toward noise), we listen to music,etc.

Any advice or tips? Has anyone else had a child that age that didn't use yes or no or even indicate a preference? Just seems a bit odd..it's a vacant stare I get to any questions...