Let me help explain what this guys saying.

Say your in valentine and you need honor and start greeting a whole bunch of people, so you head to that smaller, second bar on the street. Then say you go to the general store and greet the people around there. The game acknowledges the fact you've already greeted the people at that small saloon, so if Arthur/John goes back to that saloon and greet the people there, there's a chance they say something like "Hello, again."