Hiii My baby is 3.5 month old She giggles and smiles when i speak She also gets startled at noise while sleeping But she doesn’t turn head towards our voice At what age babies start turning head towards our voices

A. After three months any time it can start because they gain their vision their reflux and senses to a sound becomes better over the period so within 3 to 6 months you will see start getting better right now any other thing that you are mentioning into your question is all very normal