Every Tuesday at 12:15 p.m., 78-year-old Arthur Kim walks into Joe’s Diner in Burlington, Vermont, orders his usual oatmeal with blueberries, and asks Maria, the waitress, how her daughter’s college applications are going. It’s not on the menu, this kind of care—but it’s become part of the ritual. “He’s not just a customer,” Maria says. “He’s family.” Jennifer Breheny Wallace, author of the new book Mattering, would call Joe’s Diner a “mattering space”—a place outside home or work where people become known, not just seen. And in a world where loneliness is now a public health crisis, these small, consistent acts of recognition are quietly revolutionary.

Wallace’s research reveals a deep emotional gap at the heart of modern life: the difference between how valued we feel and how valued we actually are. She calls it the “mattering gap,” and it’s widening. But her work also offers a hopeful truth—mattering isn’t something you wait to receive. It’s something you build, day by day, through simple, intentional habits. One of the most powerful? Writing down just one way you made a difference each day. It could be as small as calming a crying child on the subway or sending a colleague a reassuring text. The act of noticing rewires our sense of worth from the inside out.

Another practice: keeping an “impact file.” When a student emails to say your advice changed their path, or a friend texts “I felt less alone because of you,” save it. Wallace collects these in a digital folder she calls her “mattering archive.” On hard days, she opens it—not out of vanity, but necessity. “It’s evidence,” she says, “that you’ve mattered to someone.”

Then there’s the art of the specific thank-you. Instead of “Thanks for the gift,” try “Thanks for being the kind of person who remembers how much I love old bookstores.” That shift—from object to character—lands deeper. And when someone helps you, close the loop: tell them what you did with their advice, how it helped. Let them know their time wasn’t wasted.

But perhaps the most transformative habit is imagining every person you meet wearing an invisible sign that reads, Tell me, do I matter? Answer it with your attention. With your curiosity. With your memory of their name, their story. Wallace’s father did this at his weekly diner visits. When he returned after a month away, the staff had signed a sympathy card for his late sister—a gesture that stunned him. He hadn’t just been seen. He’d been held.

In a culture that measures worth in likes and promotions, these quiet practices are radical. They remind us that mattering isn’t earned in grand moments. It’s woven in the everyday. And every time we help someone feel it, we feel it too.