Wow, Lieby sees other babies and toddlers 4-5 times a week and I was thinking that was a bit much (although he is a bit younger)! He likes seeing the same babies - on Mondays, Thursdays and some Sundays he smiles at and reaches for Dan and Jessica, on Wednesday he adores Mia and on Friday he gives Olli a Look (those two are so funny, sizing each other up all the time!). When you introduce a new baby he's not so keen - I think it is the familiarity he likes as much as seeing and playing near other babies.

I think you're doing really well - I really should call SiL today and get Lieby and Niece together soon! It's so important to know your cousins.