The Man on the Bench

Where I live there is a guy who sits on a bench.
When I went back home from school; there he was. Just sitting there, looking at the people passing by.
Sometime I would glance at him, and even though he -still- wear a pair on sunglasses, I knew our eyes locked.
The man is old with a white and long beard; he wears a grey cap on his head, and a dark blue shirt during summer, while during winter it was a dark blue jacket.
So, if you couldn't guess by now, the man is homeless. In fact, he is the only homeless in my town.
And whenever I pass by and see him, I want to hear his story. Badly.
But I never have the courage.
I just hope I'll find it someday.