If your baby seems to stick out their tongue more than usual, drools excessively, is fussy with eating or refuses to eat, or you can feel or see a bump in their mouth, call your child’s doctor ...

They may open and close the mouth repeatedly, stick the tongue out, “blow raspberries,” or make other vocalizations. For some babies, sticking the tongue out may become a habit, as it may ...

For example, a baby may stick out their tongue to test the reaction they get from a particular person. If an adult laughs in response to the baby sticking out their tongue, the baby might do it ...