Your non-dominant hand should form the "plate", so place it in front of you with your palm facing up. Use your dominant hand's index finger and thumb to pick some snacks off your "plate" hand by bringing them to the plate then bringing them close to your mouth, as if taking small bits of a snack to chew on.
Snack is a favorite sign for toddlers who need to eat between meals in order to remain calm and satisfied. Keep healthy snacks handy in the fridge or your pantry, and let your baby know that food is available any time they are hungry.
Snacks between meals curb the likelihood of a grumpy baby. The sign for snack lets our kids communicate their immediate need for sustenance.