Chatting with person in English

Few days ago, I was waiting the bus to CG hospital, a stranger foreign person suddenly talked with me. He looked like a Southeast Asia person. At first, he asked me that I can speak English or not, and we chatted a long time. Although Idid not understood what he said clearly, I almost knew what he meant about. In our conversation, I realized that he is a high school teacher. According to our dialogue, I guessed he is a high school teacher, and his course is correlate with computer and English. It was a different experence in my life because It was my first time talked with person in English. It felt so good, but I was still nervous.