Talk about an interesting old person you met recently. Who is this person? How did you meet him? How did you get to know him? What did you do with this person (optional)? Why did you find him interesting?

I caught up with my old high school teacher at the mall. When I saw him, he didn't recognize my face, but at first glance, I recognized that he was my teacher. We greeted each other and were so happy. In those few minutes, we discussed many things, and all of our old memories came [...]