my five month old kitten talks just a whole lot, whether im nearby or not. mostly its when hes looking outside and telling himself (or me if im nearby) how much he would love to be out there.or when hes looking for me. he is especially vocal at 6am when he comes to wake us up for a cuddle. but then its just little whirrs. I love it. I think they do try to communicate with us and i agree with the others, just as we talk to ourselves sometimes (its not just me right? i hope thats not an admission to being one of those strage people who talk to themselves. lol) so do they.