babies are born they put a lot of effort into working out who the important individuals in their lives are. To do this they will stare as intently as possible at those around them, memorizing faces, which is why their eyes may widen when they recognize

to the development of abilities ranging from language to social skills,” explains developmental and behavioural paediatrician Dr Lisa Nalven. In addition, it’s a way of bonding with both parents. Until around three, toddlers are refreshingly indifferent to gender

. Boys don’t wear pink or anything with bows, pretty buttons or glitter. But try telling that to Felix, who, since he was out of nappies, has been delving into his mother’s wardrobe and cross-dressing for England. “It started with the dressing-up box

to sit down and build a simple tower out of building blocks. “Those children who find it difficult to interact with adults and other children haven’t had the stimulation at home,” says Rudkin. “They haven’t learned how to play.”Dr Deborah Weber is Head