HELSINKI—Finnish engineer Karla Nieminen had just landed for her first visit to the U.S. when a stranger did something strange: He talked to her. Waiting to reclaim her luggage in San Francisco’s airport, a man she didn’t know told her it was raining outside. Buying a postcard later, a store assistant commented on the picture. Strangers asked her how she was.

Source: Wall Street Journal May 28, 2019 16:30 UTC