“We are what we repeatedly do.”

Aristotle said it first, and a century of scientific research has confirmed it: The patterns of our lives — good and bad — are carved by our habits.

But there’s something we tend to miss. We instinctively think of habits as tools for individual improvement, as levers to make us more disciplined, more efficient, more in control. But the moments that matter most — the ones that create trust, build relationships, and spark ideas — don’t happen inside us; they happen between us. They’re not individual; they’re social.

Take active listening. When you make it a habit to let someone finish what they are saying, to value what matters to them, and to check your understanding before responding, something subtle but important shifts. You don’t just communicate more effectively; you begin to see more clearly. That shift in perception changes what you do next — often in ways that ripple outward into trust, clarity, and stronger relationships.

In other words, while individual habits build capacity, social habits unlock it. They shape the space between people, and that space is where most of what matters — growth, creativity, joy — actually happens.

Over the past few years, while researching my new book, I spent time with groups that were unusually skilled at social habits. They operated in different domains — sports teams, hospitals, small businesses — but they had a common knack for generating energy, trust, and community. Of all the social habits I encountered, three stood out: visioning, learning to appreciate yellow doors, and the four H’s.

The four H’s

Every group wants to create community, but few know how to build it. This is one of the fastest and most reliable methods I’ve seen.

The structure is straightforward. Gather in small groups (three to five people) and have each person spend a few minutes answering four prompts:

• History: What experiences made you who you are? 
• Hero: Who do you admire most? 
• Heartbreak: What have you struggled through or lost? 
• Hope: What are you striving for in the coming year?

The questions are simple, yet the interactions they spark are anything but, as people share glimpses into each other’s inner worlds, seeing others and being seen. The experience generates vulnerability loops: moments of shared openness that forge connection. It shifts people out of a narrow, task-focused mindset and into a broader, relational one.

Last year, after a 4-13 season, the New England Patriots’ new coach, Mike Vrabel, started training camp by doing the four H’s. The conversations weren’t smooth or easy, and that’s why they worked. As cornerback Marcus Jones told Sports Illustrated, “It was definitely a vulnerable time. You don’t want to show too much emotion, but it helps. You play harder for your brother when you know what he’s been through.”

It would be a stretch to say that the Patriots’ subsequent run to the Super Bowl was caused by the four H’s — and it would be a stretch to say it didn’t matter. I’ve seen versions of the four H’s used in settings ranging from tech companies to special operations units, and the effect is consistent. It builds relationships the only way they are ever built: by creating moments when we pause, let go of control, and see each other fully. 

Visioning

Every successful group needs a shared horizon, a clear sense of what it is trying to build together. Nobody does this better than Zingerman’s, a $90 million community of businesses based in Ann Arbor, Michigan, which has developed a simple approach to creating that horizon. Their core insight is that a vision is not something you discover; it is something you write.

The process is disarmingly simple. You project yourself into your group’s future — say, five or ten years from now — and spend 15 minutes describing, in vivid detail, what a typical day looks like: what you’re doing, who you’re with, what life feels like, what’s bringing joy and challenge. Then you share what you’ve written and compare it with others, noticing and talking about where the visions align and where they diverge.

The point is not to predict the future accurately, but rather to shift your awareness out of immediate problem-solving and into a more expansive mode of thinking, where you can surface what you actually care about. Once that horizon is explicit, it can be discussed, refined, and aligned, creating a shared sense of direction that feels concrete and meaningful.

Zingerman’s uses this process for everything from launching new ventures to refining existing ones, and I’ve since seen it applied to teams, projects, and even life decisions. In each case, the value lies less in the document produced than in the quality of shared awareness it generates — the way it helps people see, together, what they are aiming toward.

Yellow doors

Most of us move through our days alert to green doors — signals to move forward — and red ones — signals to stop or correct course. It’s an efficient way to operate, especially in environments that reward speed and clarity. But there is another category of signal that often goes unnoticed, what Columbia University psychologist Lisa Miller calls “yellow doors.” 

Yellow doors are the small, ambiguous moments that sit at the edge of our awareness: a flicker of curiosity, a comment that doesn’t quite fit the agenda, a half-formed possibility that could be passed over. They are easy to ignore because they slow us down and don’t present themselves as obviously useful.

The habit is to notice and value yellow doors — and, when it feels right, to step through. That might mean asking one more question instead of moving on, lingering a few seconds longer in a conversation, or inviting someone to expand on something they almost didn’t say. None of these actions is dramatic. But over time, they lead to better ideas, stronger relationships, and a deeper sense of shared engagement. They create openings that would otherwise remain invisible.

I’ve felt the impact of yellow doors in my own life. A few years back, a friend asked me to go indoor climbing. At first, I said no. I’m afraid of heights and have always considered indoor climbing to be a fussy, overspecialized pursuit. But for a change, I paused and tried to see it as a yellow door. A couple of nights later, I was in the rock gym, trying to look confident in rented shoes and a harness that I had put on backward. 

It turned out, to my surprise, that indoor climbing was actually kind of fun, and that this group was a delight — open, thoughtful, buoyantly funny. We kept showing up every Wednesday evening. As time passed, we became closer; the climbs evolved into family gatherings, ski trips, playing music together, becoming a group of close friends.  

Looking back, all this was unplanned. Nobody engineered this outcome or knew at the start precisely where it would lead. What happened was simpler. We kept stepping into small opportunities — noticing something small, a moment of energy, a flicker of curiosity — and moving toward it together. Over time, those yellow doors accumulate into a rhythm, a sense of belonging. 

Because the good stuff in life is not something you plan; it’s something you grow, together.