The National Japanese American Historical Society will host “An Afternoon with Leon Sun: Compassion, the Foundations of Justice” from 2 to 3 p.m. at its Peace Gallery, 1684 Post St. in S.F.’s Japantown. Sun will discuss his experience growing up under “Red China” and British colonialism in Hong Kong to coming of age in the America of the 1960s. Sun will show and tell the events and experiences that changed his life and how they inspired his art. Info: (415) 921-5007, www.njahs.org.