I can teach you how to make $50,000 dollars over the weekend. Actually, I can't teach you that (unless you're a romance author). I just put that sentence up there to get your attention. I've been talking with writers all month about how stories are everywhere and we're all storytellers.
Let's say you were late for work this week. I bet you didn't just say, "Yo! Bossy Wossy, I'm late. But I'm here now." Instead you likely added details like, "Well, when I turned the corner I saw the bus was already speeding towards the bus stop. I ran like the dickens to get there, valiantly risking a fall--you remember I have a glass hip, right?--but I had to stop to let a group of goslings cross my path. Otherwise, I would have been on time." See, that's a story. And in it you were the valiant protagonist.
So I encourage you to add those details to the stories you naturally tell. For example if a patron returns a book with dog-eared pages you could say, "Oh, that's perfectly okay. Only one in three people who dog-ear pages gets a visit from the Terminator. So the odds are on your side." See how that perks up the interaction? Take a look at that $50,000 in a weekend offer again. Your mind can't help but write a story about it. Maybe you make that sum by stuffing envelopes or selling skin products. But it could also be that you could make that money by putting on a dusty hat, grabbing a bull whip and smuggling a rare book from an ancient Mayan temple to Saskatoon. See, the story just writes itself.