My 3months 15days baby is not giving eye contact and no social smile but he will track the moving objects and sometimes turns to sounds..is it normal?

A. At 3 months and 15 days, many babies usually start making eye contact and showing a social smile, but every baby develops at a slightly different pace. It's reassuring that your baby follows moving objects and responds to sounds, as these are positive developmental signs. However, if your baby is still not making eye contact or smiling socially, it would be a good idea to schedule a visit with your pediatrician. The doctor can check your baby's vision, hearing, and overall development. Early evaluation is important if there are any concerns, but this does not necessarily mean there is a serious problem you can continue to make face to face interaction to engage him