People say it's nice to meet you. What should I say?

I've heard a lot about you. Tribute. Nice to meet you: it's an honor to meet each other. I've heard a lot about you, which means I've admired you for a long time. It's usually used as a courtesy when I first meet someone. If it is the first time to meet, after the introduction, the host and guest say "I have heard a lot" to each other, which is a necessary process. "Admiration" means admiration, and "long admiration" means that although I have never met you, I have heard your name and admired your reputation for a long time.