Blowing Raspberries!! Is it Normal?? As your baby grows, they’ll start to communicate in different ways like gurgling, giggling, and cooing.Babies start blowing raspberries, which look like a cluster of tiny spit bubbles, between 4 and 7 months old. It’s one of the ways they develop language skills. #babydevelopment #blowingraspberries #teething #teethingbaby #teethingbabyproblems #mouthing #newbornbaby #6monthsold #7monthsold #8monthsold #9monthsold #parenting #parentingtips #firsttimemom #firs