Having Lotte chatting away all day, and of course, us replying to her, and getting her attention by calling out "Lotte"...
Suddenly one realises that the latter was a complete new experience once Lotte began to hear, allmost 3 years ago... (Is it really that long ago - has time passed by that quickly..??)
So, using her name was exhilarating. It signified a new "era" in our - and Lotte's - life.
And nowadays we don't even think about it any more, apart from the sudden realisation that pops up.
As I am writing this, Lotte is upstairs and talking continously, playing different characters, mimicking voices etc.
There is a constant need for sound!