The other morning during my usual walk with my dog Lottie, I watched something interesting happen at the crosswalk near my house. A driver stopped to let a woman cross the street, and she gave them this quick, grateful wave before hurrying across. It was such a small gesture, but it stuck with me.

Later that same day, I was at a four-way stop when another car waved me through, even though they had the right of way. Without thinking, I raised my hand in thanks before I went. That’s when it hit me: some of us automatically do this little courtesy wave, while others never seem to think about it at all.

I got curious. What is it about certain people that makes them wave thanks in these tiny moments of daily life? Turns out, psychologists have been looking into this very thing. They’ve found that this small habit reveals quite a bit about who we are.

If you’re someone who waves thanks when a car lets you pass, you likely display these nine habits.

1) You naturally think of others first

Have you ever noticed how some people seem to consider everyone around them without even trying? That’s you.

People who wave thanks at cars tend to have what psychologists call a prosocial orientation. In simpler terms, you think “we” before “me.” You instinctively recognize that the driver didn’t have to stop, that slowing down takes effort and time, and you want to acknowledge that.

Research on agreeableness personality traits shows that people high in this trait are more trusting, affectionate, and focused on helping others. They’re the first ones to lend a hand when someone needs it.

This isn’t about being a doormat or always putting yourself last. It’s about genuinely caring that someone made your life a bit easier, even if it was just for three seconds at a crosswalk.

2) You prefer keeping the peace

I’ll be honest with you: I’ve never been one for unnecessary conflict. Sure, I’ll stand my ground when it matters, but most of the time? I’d rather smooth things over than stir them up.

If you’re a courtesy waver, chances are you’re the same way.

You probably look for ways to avoid friction in your daily interactions. When there’s tension at work, you might be the one suggesting a compromise. When family dinners get heated, you change the subject or find common ground.

That quick wave isn’t just polite. It’s your way of closing the loop on a small social interaction, making sure everything stays friendly and respectful. You want that driver to know you appreciate them, and you don’t want to leave any awkwardness hanging in the air.

This trait of seeking harmony over conflict shows up in more than just traffic situations. It’s probably woven through most of what you do.

3) You show gratitude easily

You know what I’ve noticed over the years? Some folks find it incredibly hard to say thank you. They either forget, or they feel awkward about it, or they just don’t think it’s necessary.

But if you’re waving at cars, you’re not one of those people.

Studies on gratitude and personality traits have found that grateful people tend to score higher on agreeableness. They recognize when something good happens to them, and they feel compelled to acknowledge it.

For you, gratitude isn’t something you have to force or remember to practice. It comes naturally. When the barista makes your coffee just right, you thank them. When a friend does you a favor, you tell them you appreciate it. When a stranger holds the door, you smile and nod.

These aren’t grand gestures. They’re small acknowledgments that someone made your day a tiny bit better. And that wave at the crosswalk? Just another way your grateful nature shows itself.

4) You pay attention to the moment

Here’s something that might surprise you: a lot of people are so lost in their own thoughts that they completely miss what’s happening around them.

But you don’t.

When that car stops for you, you notice. You register that someone hit the brakes, waited, and let you go first. You’re present enough to see it, process it, and respond to it.

This is what psychologists call mindfulness, though you probably don’t think of it that way. Research shows that people who demonstrate present-moment awareness tend to be less stressed and more connected to the world around them.

Most drivers are on autopilot, mentally rehearsing their to-do lists or replaying yesterday’s argument. They cross the street without ever looking up. You’re different. You’re aware enough to notice kindness when it happens.

That awareness probably shows up in other areas of your life too. You might be the person who remembers the little things people say, or who catches the subtle shift in a friend’s mood when something’s wrong.

5) You believe in fairness

One of the things I learned during my years in middle management was that people have wildly different ideas about fairness. Some folks think fairness means everyone gets the same thing. Others think it means everyone gets what they need. And still others barely think about it at all.

If you wave thanks at cars, you probably fall into that first camp.

When a driver stops for you, they’re giving you something: time, patience, consideration. Your wave is your way of balancing the scales, even just a little. You don’t want to take without giving something back, even if all you can offer is a gesture of appreciation.

This sense of reciprocity likely extends beyond traffic situations. You probably feel uncomfortable when people do things for you without letting you return the favor. You might be the friend who always insists on splitting the bill, or who brings a gift when you’re invited to dinner.

It’s not that you’re keeping score. It’s that you genuinely believe interactions should feel balanced and fair for everyone involved.

6) You follow social norms naturally

Nobody teaches us to wave at cars. There’s no handbook that says, “When someone lets you cross, acknowledge them.” We just pick it up somewhere along the way, probably from watching other people do it.

If you’re a waver, you likely absorbed that lesson early and stuck with it.

You’re someone who follows unwritten social rules without much effort. You hold the door for the person behind you. You say excuse me when you need to squeeze past someone. You thank the cashier when they hand you your change.

This isn’t about being a conformist or lacking independence. It’s about recognizing that these small courtesies make society run a bit smoother. You understand that everyone’s life gets a little easier when we all follow these basic guidelines of respect and consideration.

I’ve met plenty of people over the years who actively resist these norms, as if being polite somehow makes them weak. You’re not one of them. You know that kindness takes strength, not the other way around.

7) You value connection with strangers

There’s something about that wave that creates a tiny moment of human connection.

For just a second, you and that driver aren’t strangers anymore. You’ve shared something. They helped you. You acknowledged them. It’s brief, but it’s real.

If you’re someone who does this naturally, you probably value these small connections throughout your day. Maybe you chat with the person next to you in line at the grocery store. Maybe you compliment a stranger’s dog at the park. Maybe you smile at people you pass on your morning walk.

These interactions don’t change your life in any dramatic way. But they remind you that we’re all in this together, sharing the same streets and sidewalks and spaces. That courtesy wave is your way of saying, “I see you. Thanks for seeing me too.”

In a world where we can feel pretty isolated sometimes, these tiny moments matter more than we realize.

8) You’re comfortable with vulnerability

Stay with me on this one, because it might sound strange.

Waving thanks requires a tiny bit of vulnerability. You’re putting yourself out there, making a gesture that could be ignored or misunderstood. The driver might not see it. They might not care. You’re taking that small risk anyway.

People who wave are generally comfortable with this kind of minor vulnerability. You’re willing to extend yourself first, to show appreciation even if nothing comes back to you.

This trait probably shows up in bigger ways throughout your life. You might be the person who reaches out to a friend you haven’t talked to in years, or who admits when you’re wrong, or who tells people how much they mean to you.

These acts require courage, the willingness to put your feelings on the line. That wave is just a smaller version of the same thing.

9) You trust people’s intentions

Here’s my last observation, and I think it might be the most important one.

When that car stops for you, your immediate assumption is that the driver is being helpful. You don’t wonder if they’re stopping because they have to, or because they’re distracted, or for some other reason entirely. You take their gesture at face value: they’re being kind.

This reveals something fundamental about how you see the world. You tend to assume good intentions in others. You believe most people are trying to do the right thing, even in these tiny moments.

I’ve known people who go through life suspicious of everyone’s motives. They question every act of kindness, looking for the angle. That must be exhausting.

You’re different. You see someone stop their car, and you think, “That was nice of them.” Simple as that. This trust in people’s basic decency probably makes your life a lot lighter than it would be otherwise.

Final thoughts

Looking back on all of this, that simple wave says a lot, doesn’t it?

It shows you’re aware, appreciative, cooperative, and genuinely interested in treating the people around you with respect. These aren’t earth-shattering qualities, but they’re the kind that make daily life better for everyone.

The next time you wave thanks at a car, remember: you’re not just being polite. You’re showing the world a little bit about who you are. And from what I can tell? That’s someone worth knowing.

Do you wave at cars? What other small courtesies do you think reveal something meaningful about a person’s character?