Does Your Baby Have The Tongue Thrust? Does your baby's tongue look like this when they're crying? If your baby's tongue looks bowl shaped, heart shaped, or pulled downwards when they cry, this can be a sign of oral restriction 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 Tongue Thrust Appliance: What It Is and How It Works