It's good to meet you. ( first time )
It's good to see you. ( after the first time )
Keep in touch
You can do it!
Do your best
Welcome
It's been nice talking to you.
Good luck!
That's wonderful
Have fun
welcome back!
That's too bad
Have a nice trip.
Come in
Congratulations !
That's terrible
I'm happy to hear that.
Have a good / nice day.
Wow !
I'm sorry to hear that
