What does "go the extra smile" mean?

Hello everyone,

can somebody please tell me what “go the extra smile” means?

Thanks very much for the help!!

Go the extra smile is a word play on the phrase go the extra mile.

It basically means if you give a smile, you will get a smile.

It has been adopted in the world of customer service employees and there are now many training courses named in this way.

Thank you very much for the explanation, I really appreciate it!

My problem in learning English is that I understand each single word, but when they are put into sentences, I’m lost… ><"

p.s. Is “go” in “go the extra mile” a transitive verb? Does “go” here mean “move”?

You must remember that to go somewhere does NOT always mean travel.

In thinking you can go somewhere, a contract or a situation (inanimate objects) can go somewhere …

I see, thank you very much ^^