I remember a similar scene in some movie, but cant remember which one.
Today was a very cloudy and grey day.And it very much reflected my mood. Was walking through a lane, when a man got out of his car. As is the custom here, I smiled at him when our eyes met. He said 'Cheer up lady !'. I gave a wide smile and walked away. Suddenly, I realized I was really smiling, I walked back to him and said .. "You know that really helped.Thanks.". He replied.."Really? I am glad it did."
I guess, despite what mom says, sometimes talking to strangers is not that bad :)