Is My Baby Sticking His Tongue Out Normal? Baby's Chin Twitching: Is It Perfectly Normal or a Reason for Concern? ? Tongue movement in babies could point to 'silent' language practice News and events, University of York ARK's Z Vibe Vibrating Oral Motor Tool ARK Therapeutic Babies do burr burr (lip blowing raspberries) for a few adorable and very important reasons:, 1. They are exploring their mouth, Around 49 months, babies discover they can control their Speech language pathologists (like me!) who specialize in helping parents boost speech, language and feeding skills know the importance of stimulating baby's tongue. One of the first things I teach parents Is