Charlie Chaplin and Helen Keller meet on the set of "Sunnyside," 1918
Keller & her party had dinner with Chaplin and were screened two of his films, A Dog's Life and Shoulder Arms. "Before he reeled off the pictures, he let me touch his clothes, his shoes, his moustache that I might have a clearer idea of him onscreen. He sat beside me and asked me again and again if I was really interested--if I liked him and the little dog in the picture." Keller's teacher and companion, Anne Sullivan, described the scenes with sign language in the palm of Keller's hand. "Onlookers declare that she led the laughter as the absurd situations developed and that she did not miss one of the subtle bits of comedy."
Source: Discovering Chaplin