My great-grandmother was very close to my mom and was apparently an incredible woman. She died before I was born, but my mom tells us a lot of stories about her. From the time my little sister was born, she's had a very strong resemblance to old pictures of my great-grandma and her whole side of the family. Once, when my sister was a baby just beginning to learn to speak, my mom was holding my sister on her lap, talking and playing with her. My sister reached up and took my mother's face in her hands (like my great-grandmother used to do to my mom when she was alive), looked her in the eye, and very clearly said, "You always were such a beautiful baby." My mother was shocked, but my sister, who was not yet speaking in full sentences, had gone back to making her typical baby sounds.
My mom told this story at dinner when my sister was about six or seven. This was the first time my sister ever heard the story, and she was a little freaked out. As soon as my mom finished telling the story though, my sister's eye twitched, as if she were winking.