Trust is a funny thing. I’ve given it away too freely in my life, and each time I got burned, I told myself I’d learned my lesson. Yet somehow, I’d find myself in the same position again, wondering how I missed the warning signs.

After decades of both beautiful friendships and painful betrayals, I’ve finally developed a checklist that’s saved me from countless disasters.

Look, nobody wants to become cynical or paranoid. But there’s a difference between being trusting and being naive. The key is knowing what to look for before you hand over your confidence to someone else.

1) How they treat people who can’t benefit them

Ever notice how someone treats the waiter at a restaurant? Or the cashier at the grocery store? That tells you everything. I once worked with someone who was charming and attentive to our boss but absolutely vicious to the intern.

Guess what happened when I needed their support during a tough project? They threw me under the bus without hesitation.

Watch how they interact with people who have nothing to offer them. If they’re dismissive, rude, or impatient with service workers, elderly neighbors, or anyone they perceive as “beneath” them, that’s your future preview. When you’re no longer useful to them, you’ll get the same treatment.

2) Whether their words match their actions

“Actions speak louder than words” might be the most ignored piece of wisdom in human history. I had a friend who constantly talked about loyalty and having each other’s backs.

When I had to make a tough decision about ending a toxic friendship in my 50s, this “loyal” friend immediately sided with the person I was distancing myself from, despite knowing how much that relationship was draining my energy.

Pay attention to patterns. Does someone promise to call but never do? Say they value honesty but tell white lies constantly? Claim they’re supportive but disappear when you need them? These inconsistencies aren’t quirks. They’re character reveals.

3) How they handle being wrong

Can they admit mistakes? Or do they twist reality into pretzels to avoid accountability?

I made a poor investment in my 40s that cost me significantly. While I owned up to my lack of research and financial naivety, my investment partner blamed everyone but himself: the market, the advisors, even me for “pressuring” him into it (I hadn’t).

Someone who can’t say “I was wrong” or “I’m sorry” without adding a “but” is someone who will betray you and make it your fault. They’ll rewrite history to preserve their self-image, and you’ll always be the villain in their story.

4) Their relationship history patterns

Do all their exes seem to be “crazy”? Have all their former friends “betrayed” them? Are all their previous employers “toxic”? When someone has a trail of broken relationships behind them with zero accountability, you’re looking at your future.

I’m not saying people can’t have bad luck or that toxic people don’t exist. But when someone is always the victim in every story they tell, something’s off.

Healthy people can usually point to at least some relationships that ended amicably or where they share the blame.

5) How they react to your boundaries

Set a small boundary and watch what happens. Say no to a favor. Decline an invitation. Express a different opinion. Their reaction will tell you whether they respect you as a person or see you as a resource.

I once had to fire an employee who’d become a friend. Before the firing, I’d started setting professional boundaries: no more after-hours drinks, keeping conversations work-focused.

Instead of respecting these boundaries, he pushed harder, showed up at my house uninvited, and tried emotional manipulation. The firing became inevitable, and his reaction proved I’d made the right choice.

6) Whether they gossip about others to you

Here’s a guarantee: someone who gossips TO you will gossip ABOUT you. No exceptions. If they’re sharing other people’s secrets, mocking mutual friends, or spreading rumors, you’re not special. You’re just not the topic yet.

I learned this the hard way when a colleague who constantly shared office dirt about everyone else ended up spreading false information about me during a reorganization.

Suddenly, I understood why so many people had warned me about trusting this person. The gossip that seemed harmless when directed at others became a weapon aimed at me.

7) How they handle your success

True friends celebrate your wins. Untrustworthy people find ways to diminish them. They’ll point out how you got lucky, remind you of your failures, or immediately pivot to their own achievements. Some get quiet and withdrawn when good things happen to you.

After being laid off unexpectedly at 45, I eventually landed a better position with higher pay. Most friends were thrilled. But one long-time friend made snide comments about how “some people fall upward” and how the company “probably just needed to fill a quota.”

That jealousy revealed someone who’d been rooting against me all along.

8) Their relationship with the truth

Do they embellish stories? Tell different versions to different people? Create drama where none exists? Small lies aren’t harmless – they’re practice runs for bigger deceptions.

Years ago, I had a serious argument with my brother that lasted two years. During our estrangement, a mutual friend kept trying to “help” by relaying messages between us.

Later, I discovered this friend had been twisting our words, making the situation worse to maintain their position as the “peacemaker.” My brother and I eventually reconciled when we talked directly and realized how we’d been manipulated.

Final thoughts

Trust should be earned gradually, not given wholesale. These eight checks aren’t about becoming suspicious of everyone: they’re about being observant and protecting yourself from unnecessary pain.

The beautiful thing about having standards for trust is that when someone meets them, you can relax into the relationship fully. You’re not constantly watching your back or second-guessing their motives. You’ve done your due diligence.

Remember, someone showing one of these red flags might deserve caution, not complete dismissal. But multiple flags? That’s not a person to trust with your secrets, your money, or your heart. Better to learn from my mistakes than make them yourself.