Flippin' Teacher of the Deaf.
Her latest pearl of wisdom (yesterday) was that we should encourage Andrew to vocalise by withholding things, rather than anticipating his needs. So if he doesn't shout for food or milk, we should wait until he does.
Like to see what the dietitian and paediatrician have to say about that - they want us to cram in as many calories as possible during the day.
I can see her point though. He never has to ask for anything (apart from holding up his arms for a cuddle), everything else is either on hand or given out as part of the daily routine.