Question: how many months does a baby start cooing?
Answer: Babies this age begin smiling regularly at mom and dad, but may need some time to warm up to less familiar people, like grandparents. Babies now discover their ability to vocalize: Soon you'll have a cooing and gurgling machine! Some babies begin to make some vowel sounds (like "ah-ah" or "ooh-ooh") at about 2 months.