When a partner's explanation doesn't fit what you've seen, it's easy to start studying every pause and expression. That usually leaves you with more anxiety and little certainty.
Look first at verifiable information and repeated behavior. A research overview from the American Psychological Association explains why familiar cues such as avoiding eye contact or fidgeting aren't reliable ways to identify a lie.
These 13 points are prompts for reflection and conversation. There is no number of boxes you can tick that proves someone is dishonest.
Look at the account and the evidence
1. Important details don't fit together
A contradiction is worth asking about, especially when it affects something important to you. Leave room for mistakes and missing context before deciding that the explanation was invented.
2. The account changes in meaningful ways
Memory isn't a recording, so small differences aren't automatic evidence of deceit. Notice changes to central facts and ask calmly what explains them.
3. Other information conflicts with the story
Consider how dependable each source is. Several people repeating the same rumor aren't necessarily independent confirmation. Focus on what can actually be established.
4. Reasonable clarification is repeatedly refused
Ask about information relevant to an agreement you've made together. A partner can also have legitimate privacy; refusing to surrender a phone or password doesn't prove dishonesty. Discuss the particular uncertainty rather than demanding unlimited access.
Notice how concerns are handled
5. The question never gets answered
Repeated subject changes may leave a real issue unresolved. Return to the specific question. If they need time to think or find information, agree when you'll discuss it again.
6. Questions bring hostility
An honest person can feel defensive, and a dishonest person can stay calm. Anger doesn't settle whether the story is true. Threats or repeated intimidation still deserve attention because of how you're being treated.
7. Your concern becomes a reason to attack you
A conversation can turn into criticism of your character while the original question disappears. Bring it back to the issue. You don't have to accept humiliation to show that you trust someone.
8. You're pushed to agree immediately
Emotional appeals don't prove deception either. You can nevertheless take time to consider an explanation instead of agreeing just to end the pressure.
Separate privacy from concealment and control
9. Body language feels different
A changed expression or nervous manner may tell you that a conversation is uncomfortable. It doesn't tell you why. Use it as a reason to ask how they're feeling, rather than as a lie detector.
10. Information you reasonably need is withheld
Everyone can have private thoughts and conversations. Concealing facts that affect shared decisions is a different concern. Be specific about the agreement or decision involved and the information you're missing.
11. Your outside connections are discouraged
Attempts to cut you off from friends or family can leave you without support. They don't prove a particular lie, but the controlling behavior matters in its own right. Keep access to people you trust.
Give your feelings context
12. Something feels wrong
Take discomfort seriously enough to slow down. Write down what you observed separately from what you fear it means. A feeling can guide a question without supplying its answer.
13. Faith is part of how you reflect
For Christians who look to the Holy Spirit for guidance, prayer may be a valued part of reflection. Keep that practice separate from claiming certainty about another person's conduct. Consider evidence, explanations and trusted support too.
You may not be able to establish exactly what happened. You can still decide whether the relationship offers enough honesty, respect and safety for you. Where a conversation is safe, use clear examples and requests; where it isn't, prioritize support over trying to win an argument about the truth.