Toddlers up to age five and their adult companions are invited to become a Young Portrait Explorer and discover the National Portrait Gallery through history and art. The activities include looking at a portrait, listening to a story, and participating in a hands-on activity. Free; registration required at http://www.eventbrite.com/org/810710525. Class size is limited to 25 participants. Parents and guardians must remain with their children. Gather in the G Street Lobby at 10:25 a.m.; the program begins promptly at 10:30.