@Keansor : Customer send email to the boss to say thanks, the boss said it to her. She probably asked him if she could have a copy of some of these emails (and he said yes)
You can see the boss in front of his computer last chapter
@Keansor
Last page: "We received a bunch of emails from customers saying you're a great waitress"
This page: "I asked him to print out those emails"
Seems pretty related to me?
I've taken off my clothes to cheer people up - sometimes it did, other times not so much. But, it's one of those 'Nothing ventured, nothing gained' kind of things.