Ethan still likes playing peek-a-boo. He covers his eyes, and I pretend I can’t find him. Then he uncovers, and I still tend to look around for a while before I discover that he’s visible again. He really likes that second part, and now he’s become part of the act. Taking the idea from when I’d make a sound to help him find me during chase and hide, today, he started making little sounds during peek-a-boo to cue me in to his revealed presence.