I am looking for a single noun to describe someone that you have come within 5 feet of or so, or have seen, or have crossed paths with.
The closest terms I can think of are passer-by or stranger. You may or may not know them, so stranger is not a good fit. Is there a better word than passer-by?
Why the question? I am building an app that detects other mobile devices using Bluetooth, and I need a name for the collection of these people. Initially, I was considering nearbyUsers or nearbyPeople, but once they go out of range they are no longer nearby.
What are they?