By Colleen Hurley, RD Certified Kid’s Nutrition Specialist During this exciting stage of development at 3 to 6 months old, your baby will be amazed with his newfound skills and the intriguing world around him, all of which is certain to entertain you in the process. Around this time, your baby will no longer be content to simply lie down when he’s awake. Be sure to sit him up in an infant seat so he can see what is going on.Your baby’s new found skills may include: •Giggling at your funny faces