Pickle is signed by taking your dominant hand's pointer finger while the rest of your fingers are drawn into a fist, then hold your pointer to your jaw, just under the side of your mouth, and twist it back and forth. It is also the same sign for sour, so make sure you make a sour face when you show your baby a pickle!
Pickle and candy are close signs, so make sure to sign candy a bit higher, on your cheek, while smiling!
Teach your baby the sign for pickle when she is about to eat a pickle, or when you are out shopping for pickles and other food items.
It is good to teach your baby various food and vegetable signs, along with the taste signs that may go along with them.