Try tickling your baby, talking and laughing at them. It’s likely they’ll reply with different sounds and delicious laughter, a type of answer that is part of the child’s social development.

Besides, the spontaneous and inviting smile – yes, an irresistible one! – is the signature move at this age. The babbling transforms each day in smiles, murmurs, squeals and shouts – especially during bath time, where babies can prove from an early age they know the meaning of “making a mess”.

Another sign of intellectual development is the interest in emitting and copying various sounds. Imitate the baby and they’ll imitate you back – and vice-versa. More interested in people, children show happiness in hearing and seeing familiar faces. Basically, any interaction now is constant and wonderful.