Hi Mari! I agree with James, but I also say "Likewise". It may sound a bit formal, but I use it all the time. Example: - Mari: It was nice meeting you, Dan. - Dan: Likewise! By the way, your question should be "HOW do you say..."

"You too" is fine and most common. Or you could say "The same to you".

You can also say "Right back atcha" then add "good buddy" or "big guy" or even "babe" depending on your mood :)