I was on the road today, a stranger. How did he know my last name? Is he a liar?

How come? He won't tell you your last name as soon as we meet, will he? You can't just tell your last name and leave. ! ! Even the Daoist wants you to ask him, so he is willing to tell you what you asked or what you want to ask. Can you tell me more about it? ! ! ! If someone who claims to be a fortune teller told you, then maybe I can explain it to you.

My QQ: 1449889800