There they are, all those others out there. Some are doing something similar to what you are doing, but others are running for their lives, lying in illness, wishing not for a coffee but for a drink of water.
To whatever the world is physically as an entity in the cosmos we add what it means for us. We share a planet but not world lines. Your world and mine run as lines sometimes parallel, sometimes perpendicularly to each other. Some of the world lines corkscrew or bend sharply. Paint all the world lines on a single canvas and you end up with a Jackson Pollock artwork.
As you encounter other people today, think of their world lines and how they lie on Earth’s canvas next to, and sometimes intersecting with, your world line.