久仰大名!
I’ve heard a lot about you.
我一直期待能与你见面!
I‘ve been looking forward to meeting you!
什么风把你吹来了?
What brings you here?
好久不见!
Long time no see!
我好久没见你了!
I haven't seen you for ages / a long time!
我们多久没见了?
How long has it been since we last met?
你最近怎么样?
How have you been(doing)?
你最近忙什么呢?
what have you been doing?
我们以前见过吗?
Have we met before?