DD was a pretty serious baby. She didn't smile until about 3 months old. We didn't get a real laugh out of her until about 6-7 months, and we only got her to do it once But by 12 months she was a giggle monster
Around a month and I know it wasn't gas. Even his pedi commented on how happy he was because he would just lay there and smile at everyone that would talk to him. Now he's 5 months and still all smiles.
<blockquote><b>Quoting Chels :3:</b>" Honestly two days after birth, and my nurse said it was a legit smile because I kept saying it made me sad that they weren't real. Her's were actual smiles. She like came out smiling "</blockquote>
Less than a month old. I remember going to see the lactation specialist at the hospital and I handed her to the specialist so I could run to the bathroom, when I took her back she had the world's biggest smile on her face like, "Hey mommy there you are!"