Love serenade

I was coming out of the 7/11, the newspaper under my arm. There are always guys standing in front of the store, usually in the morning, waiting for work. A pick-up truck will come up and two or three will jump in. In the evening, it's much more unusual so the group attracts my attention. As I get closer I can hear the sound of a guitar being played softly, not to attract any unwanted attention. The three guys around are singing in whispers. I hear the words "Mi amor" as I walk by.