In conjunction with the opening of its newest exhibit, “I Wish to Say” by artist Cheryl Oring, the McCormick Tribune Freedom Museum (445 N. Michigan) offers a day of free activities on Saturday the 15th. From 11 to 4, light refreshments will be served and visitors can compose messages to President-elect Obama, which the museum will mail to the White House after Inauguration Day. There will also be a computer station where constituents can send letters to their representatives. Meanwhile, Oring will give a performance from 1 to 3.