Sometimes when you visit take photo books and look at them with him/her. My mother actually made these up, different books with photographs and writings about her family, my father’s family and her experiences in Japan with her husband and as a president of Ikebana International. Living in Japan was an exciting time for both of them. We kepot some of these books in her room and regularly when I visited I would go through them with her.
I don’t know if looking at the photographs meant anything or not, I believe it did and end of discussion.