I've seen you around here before. 我以前在这附近见过你。
 Your face is very familiar. 你看起来很面熟。

Catherine: I've seen you around here before, haven't I?
Jay:   Yeah, I think so. Your face is very familiar.
Catherine:  My name's Catherine.  What's yours?
Jay:   I'm Jay. Please, take a seat.
Catherine:   Thanks. So, what are you reading?

凯瑟琳： 我以前在这附近见过你，是吧？
杰：        是啊，我想是的，你看起来很面熟。
凯瑟琳： 我叫凯瑟琳。你呢？

杰：         我是杰，请坐。
凯瑟琳：  谢谢，你在念什么书呢？

introduce 介绍  familiar 熟悉的  take a seat 请坐下