That's very interesting indeed, and nicely answers my question about pointing from a couple of weeks ago. DD has started pointing in a protodeclarative way since then, but oddly will still not point to something she wants, but will take us to it instead and ask for it. Thinking back, I don't remember much showing, although DS does it all the time, but I remember a lot of arms up to be picked up and a lovely game (it was a pain in the bum) of dropping stuff and then waving until it was picked up. She waved goodbye, blew kisses, gave bear hugs and held our hands when tired or upset. She only gives me things to start a game as a rule, not to show me. DS will give me a ball and then take it back, to show it to me, but DD will only give me a ball to ask me to play with her. Very interested that there was such a large group of language delayed siblings as well. We are very on the fence about whether there is anything more to DDs odd behaviour than a language delay and a hearing loss, but DS is a bit delayed in speech as well at 20 months. He only just started saying Mummy, and his other words are essentially tools (banana, cuddle, cakey) and there aren't many of them. So good to know that there can be a genetic component as well.