Let me establish a scene for you: It's late May in Washington, D.C. You're out for a walk near the White House, planning to snap a few photos and then head to lunch.
You think, "Wow, it sure would be cool to see someone important. Maybe a senator?"
As you walk along, a voice asks, "Hey, how you doing?" You turn and come face to face with President Barack Obama himself.
That's exactly what happened on Friday when Obama decided to take a springtime walk through D.C. Many people couldn't believe they met the man in person.