Kari Percival, Malden artist and author, will read from her new picture book, How to Say Hello to a Worm, and then offer a special gardening activity on the library front lawn. This free program is appropriate for young children (ages 2-5). For the activity, families should bring a container in which to plant their garden. Suitable containers can be an empty 32-ounce yogurt container (with lid) or an empty plastic half-gallon milk jug or an empty 2-liter soda bottle or a similar-sized flower pot.