My LO didn’t start smiling socially till 10 weeks. Every baby is different I wouldn’t worry too much. Just keep talking to them. You have to be quite slow with your movements and repeat the same noises again as it takes them longer to process sounds and our faces. Keep at it mama xx
Every baby is different and he will smile in his own time. Don’t worry.
Social smiles tend to start between 6-8 weeks, so I wouldn’t worry. Keep talking to him, sing to him, lots of cuddles, tummy raspberries & kisses 🫶🏻