Ds2, aged nearly 1, took the phone off me today and started mimicing my pitch and tone "Abba dadada babammmmm" into it. i was gobsmacked, rang a frind, and apparently this is all perfectly normal!
Ds1 didn't do this. nothing like this. Ds1, aged 4, has only just this month started pretending to have phone conversations - he seems to have a big mental block when it comes to communications.