a two-month-old can easily track a moving person or object notice that both the eyes and the neck track mom's motion two month old infants can track 180 degrees two month old babies will begin to express pleasure when others are present by smiling kicking and waving their arms take a look at Cameron having an obvious social interaction with his mother by cooing waving and kicking listen to Cameron's voice do you think he's unhappy or in pain [Music] two to four month old babies respond to facial expressions and vocal cues putting objects and hands in mouth can be seen in infants two to four months of age notice that the hands are midline and the hands are opening and closing that's good that's great and he's opening and shutting his hands and he's taking swipes at the jangling object not here Kameron begins to express pleasure upon hearing human voices particularly mother's voice Helden TV hi pointed I use Miley are you smiling cooing starts at around two months of age and can usually be triggered by a social interaction with the infant at two months neck tone is stronger with some head bobbing when sitting up I think it's siesta time around two to three months of age infants can raise their head when in a prone position but struggle to maintain it it is normal to have a baby in a different emotional state than you are during an exam try soothing the baby by having mother hold him or her Lily was quite ready to call it a day with our exam but decided it was still okay as long as she was close to mom and can suck on her pacifier babies can get quite fussy while you're trying to examine them it may be worthwhile holding the exam and go to plan B giving them some milk before you proceed Lily did not come down for long with her pacifier dad came in he helped with the feeding and Lily was so hungry she was quite eager to finish all her milk you can go ahead and proceed with the exam after the baby is comfortable and had a feed you you