Scenario: (Please note: This also happened to Ami while she was in Paris this past year.) You hop onto a bus in Saint Dennis on your way to the Shakespeare & Co Bookstore, when in the sea of foreign faces you see a former intern from your current job. She lives in Paris now! The next day, you are walking up a hill toward the Lapin Agile when you see, coming down the hill, your former boss at the last company you worked at. He is visiting too!
How To Handle It: If you saw these people in the city you lived in, it would be perfectly acceptable to avoid running into them if you wanted to. But if you are in a foreign country, you are 100 percent obligated to stop and chat.
What It Might Mean: I feel pretty certain that it was an opportunity for me to see how far I'd come since working at my last job. It was also affirmation that I was doing the right thing with my life, career wise. But depending on how you know the person, that might point you in the direction of the area to focus on. Because the GUM of running into someone in a foreign country is way more than a coincidence.