#AskTheExpert My baby is turning 6 months old in one more week. He is a very alert and smiles a lot. Makes great eye contact, recognises us and makes all type of gurgling and cooing sounds. He is good at following sounds as well. He is able to roll from his tummy to the back and again back to the tummy. But I haven't been able to get him to laugh. He attempted to laugh a few weeks ago but that has stopped since then. Should I be worried ? I see much younger babies have a full belly laugh but my son doesn't even giggle.