Met a lovely couple over at the park this evening.....they didn't even know I was there while I snapped away at the sunset with them in the foreground.....so I went over to them to show them the photos and they were completely surprised, but loved the photos.  
That's one of the things I love about taking photos:  the unexpected addition of a person or a couple adds SO MUCH to an image.  I gave them my email address and hope they will email me so I can send them the photos.....:)