It's all about setting a tone.
Image 1: Bush gathers with children and National Turkey Federation officials as he pardons "Pumpkin", the 2008 Thanksgiving turkey, during a ceremony in the Rose Garden. Washington. November 26, 2008. Jim Watson/AFP - Getty.
Image 2: Obama passes out food at a food bank with his wife Michelle and daughters Malia and Sasha for Thanksgiving during surprise visit to St. Columbanus Parish and School. Chicago, Illinois, November 26, 2008. November 26, 2008. Jason Reed/Reuters.