Baby can see and may follow bright lights or bright colored objects. Baby can hear. May look and listen intently when spoken to softly. Baby may start to smile. Some babies just need to be held.
Some infants are fussy and a cause for crying is never found.
Excessive crying is common at 4-6 weeks. This usually ends about 3 months of age. Colic or patterns of excessive crying seem to develop anywhere from 2 to 6 weeks of age. See the back of this sheet for some ideas on how to deal with colic. Your baby may need to move from the cradle to the crib.