My just-turned-2yr old is a clever little girl in many ways. Knows how to wake my phone up and open the CBeebies App. Change the Sky channel from the set top box(!) and watches so much Bing that she has started shouting "Flop!!" when she needs something instead of Mummy. Although, she has only JUST started saying "Mummy" this past week... She's been saying "Daddy" since she was about 11 months (even though she doesn't have one!) and has been singing the full "Twinkle Twinkle Little Star" song (well, one line is her own version!) for months.
However, she still isn't responding to questions. Or asking me questions. So if I say "Do you want a drink sweetheart" she'll just look at me. Maybe mutter something in her own language and go back to what she's doing? Is this normal?? I have to put the drink in front of her and if she wants it, she'll take it. If she doesn't she'll say "No" and throw it on the floor or hand me it back! She will never ever ask or say she does want something and has never picked up a toy/sweet in a shop and indicate that she wants it. She also doesn't really point to things and if I point to something she hasn't yet figured out that she's meant to look at what I'm pointing to?
She can string sentences together if it's part of a song. But the rest of the time she'll only three maybe four words at the most. The rest of what she says is in her own little language. She does recognise things on the tv and when we're driving past somewhere she knows. Like the Soft Play Centre that has recently closed down 
(Ever tried explaining that one to a 2yr old?!?!?!?!?)
Am I being paranoid? Or should she be way more developed than this? It is NOT that I am necessarily 'wanting' her to be more advanced than she is. I'm just worried she is a little behind? My friend has a little girl the same age and she is streets ahead! I know they develop at different rates. But my friend's little girl will respond to any question and will pretty much have a full conversation nearly with her Mummy 
My girl is an only child with a depressed Mummy that probably should interact with her a little more than I already do! (It's just so hard sometimes
)
Please be kind! Thanks