Byfield: Chase Kennedy, 4, of Georgetown, with mom, Kristina, imitates a chimpanzee as he learns the basics of sign lanauage at Children's Hour at the Newbury Public Library. Lindsey Aylward is a guest librarian teaching American Sign Lanquage to 3-5 year olds for the next three Wednesdays at 11:00 am. Bryan Eaton/Staff Photo

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