Being called by strangers outside at night … what's the matter?

That man doesn't know you very well. You didn't promise him when he called you. He thought he was mistaken for someone else, so he was afraid to call you again. Maybe he's looking for someone. Your friend or classmate suddenly saw you, but he was not sure if it was you, so he called out your name. Seeing that you didn't answer, he thought it was the wrong person. .