I don't consider it "proving" I'm working but, I tend to over-communicate (or some call it just "communicate") with my team. I let them know when I'm running to lunch or running an errand. I tend to talk about what I'm working on throughout the day. Folks rarely respond to any of it but, I feel a level of accountability. I don't expect anyone else to walk me through their day... It's just a "me" thing.