Augmented reality idea.
Use tile key fob or air tags and be able to see an identifier having hovering over them in augmented reality. If you make finding your bag a lot easier when you go to the baggage claim after flight. Just look for your identifier floating around the baggage thing and you could even watch it, and through the airport. Once a conference in range of your glasses.
He also do that with people and have their phones or tags identifier above them so that he could keep up with them in the store or in a crowd or at a concert or in a theme park.
Just different ways that he needs the technology to see what’s going on around you and maybe keep up with people you want to keep up with.