I love looking at the visual metadata in peoples online pictures ( SELFIES!!! ) .  Wallpaper, carpets, furniture, pictures, mess. Especially on dating sites! It often tells a very different story. Sometimes I get in touch and ask them about things.  "Who painted that picture"  "What type of thing came in that cardboard box"  .. It's much more interesting than "Hi, I'm John, I love football and my motorbike, Seeking a partner for walks in the countryside and fun" .