People share the 18 things that are a 'subtle sign' someone is really smart
"They effortlessly communicate complex concepts in a simple way."

Albert Einstein
One of the strangest things about being human is that people of lesser intelligence tend to overestimate how smart they are and people who are highly intelligent tend to underestimate how smart they are.
This is called the Dunning-Kruger effect and it’s proven every time you log onto Facebook and see someone from high school who thinks they know more about vaccines than a doctor.
The interesting thing is that even though people are poor judges of their own smarts, we’ve evolved to be pretty good at judging the intelligence of others.
“Such findings imply that, in order to be adaptive, first impressions of personality or social characteristics should be accurate,” a study published in the journal Intelligence says. “There is accumulating evidence that this is indeed the case—at least to some extent—for traits such as intelligence extraversion, conscientiousness, openness, and narcissism, and even for characteristics such as sexual orientation, political ideology, or antigay prejudice.”
Reddit user Gisgiii posed a question to the AskReddit subforum: “What is a subtle sign that someone is really intelligent?”
The answers painted a clear picture of how smart people behave: They tend to be great communicators who understand their audience and are more concerned with getting things right than being right.
Here are 18 of the best answers.
1. They draw wisdom from multiple sources.
"They draw wisdom from multiple sources. Wait but that might be more wise than intelligent... But I guess those two tend to be seen together a lot," — Puzzlehead-Engineer
2. They know their audience.
"They can switch up the way they talk to match the person they're talking to without sounding condescending. They listen to how others learn and explain it in that person's language of understanding," — Wynonna99
3. They develop a keen sense for their job.
"I used to work with a doctor - Tom Howard - and the day I realized he was a genius was the time he guessed every single condition a patient of mine had based on minute pieces of information about him," — Yodei_Mon
4. Curiosity.
"They are curious about everything. To be intelligent you need to be knowledgeable and you can't be knowledgeable if you are never curious," — soup54461
5. They're great at conveying ideas.
"When they explain something they make you feel intelligent," — gwoshmi
6. Considerate questions.
"They spend time thinking before asking a question," — ParkMan73
7. They make hard ideas simple.
"They effortlessly communicate complex concepts in a simple way," — joculator
8. They know what they don't know.
"They know when their knowledge ends and say something to the extent of 'i don't know and anything else i say on this topic is ignorant speculation,'" — blutoboy
9. They ask great questions.
"They can ask really good questions."
"Edit: to anyone not understanding what mean, I’m talking about people who ask “really good questions”, not just any questions, really good ones. I don’t know how one would achieve this skill(I know I haven’t)," — milkmanbran
10. They don't pretend to know everything.
"They aren’t afraid to say they don’t know the answer to a question," — xchernx
11. They change their minds with new information.
"They admit to changing their mind about something," — FarAwayAdventure
12. They pivot well.
"They apply knowledge from one realm into a new and relevant situation," — soubestitch
13. They are open-minded.
"They can genuinely consider an idea which opposes their worldview without necessarily accepting it," — paidshill29
14. They use analogies.
"People who use analogies to explain concepts to others. It’s a form of code-switching and integrating concepts on the fly and is a clear indicator someone is both socially and conceptually intelligent," — SwimmerAutomatic2488
15. They don't argue.
"I think intelligent people are more willing to calmly debate/discuss, rather than argue. Like, you explain to them why you disagree, and they listen to you and ask further questions about your viewpoint before offering a different perspective; as opposed to an unintelligent person, who would just resort to insults when other people disagree with them," — AngelicCinnamonBun
16. They learn from mistakes.
"Admitting when they're wrong and being willing to learn from mistakes," — siyl1979
17. A sense of humor.
"Humor. I think that truly funny people are often very smart and cognizant of the different ways an idea can be humorous on several levels. They also know their audience. I think the difference between say a Jeff Foxworthy and a Dave Chappelle and a Bo Burnham is their audience and their interests," — biscuitboi967
18. A love of learning.
"They say they love learning and they learn something new every day. Then they listen more than talk," — throwingplaydough
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TV for waking. TV for sleep.
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Mom is totally humiliated after her kindergartner tells the teacher what she does for work
She was clearly mortified.
A mom is embarrassed by her child.
One of the great joys and stresses of parenting is that you never know what will come out of your child’s mouth. When you have young, inquisitive kids, they can say really inappropriate things to people without realizing they were being rude or possibly offensive. TikTok influencer Aurora McCausland (@auroramccausland), known for her DIY cleaning tips, recently told a funny story on the platform about how her son believes she makes a living. The problem was that she heard about it from her child's teacher.
Mom is embarrassed by her child
“The other day, I went and picked my five year old up from school and when I get to his classroom his teacher pulls me inside and says, ‘Hey, today he wanted to tell us about what Mommy does for work and said that Mommy makes videos in her bedroom but only when I'm [he’s] not at home,” McCausland recalled.
Given her body language while telling the story, McCausland was clearly mortified after hearing what her child said to his teacher. It makes it look like she may be posting videos to adult sites while her child is at school, which most people wouldn’t want their son’s teacher to know about.
The good news is that another teacher was there to clarify the young boy's comments by adding, “I think she makes TikTok videos.” The uncomfortable situation was a great invitation to chat with her son about what she does for a living. “So I have to have a conversation with my son about how he tells people what I do for work,” she finished her video.
The funny video went viral, earning over 1.7 million views on TikTok, and inspired many people to share the times when their children had funny ways of explaining their careers. The commenters were a great reminder to parents everywhere that if your child says something embarrassing, it's ok, just about everyone has been through it.
Moms share their most embarrassing moments
A lot of parents spoke up in the comments to show McCausland that she's not the only one to feel embarrassed in front of her child's teacher.
"My son told everyone that we were homeless (because we don’t own our home, we rent)," KBR wrote.
"I work in ortho.. my daughter told her teacher I steal people's knees bc she heard me talking to my husband about a knee replacement," Aingeal wrote.
"My son told a teacher we were living in our car over the summer. Camping. We went camping," Kera wrote.
"In kinder, my son thought Red Bull was alcohol and told his teacher I liked to have beer on the way to school," Ashley wrote.
My niece told her teacher her mom and dad work at the wh*re house. They work at the courthouse," Ellis wrote.
"My husband works as a table games dealer at a casino. Kindergartener, 'Daddy's a Dealer!' We now start every school year clearly stating he works at the casino," CMAC
"My son said we lived in a crack house…There’s a tiny chip in the wall from the doorknob," KNWerner wrote.
"My dad is a hospice chaplain and officiates a lot of funerals. My son and nephew were asked by their preschool teacher if their papa was retired or had a job. They told her his job was to kill people," Tiffyd wrote.
"My son said "my dad left me and I'm all alone" to a random person at the zoo. My husband was just at work," Shelby.
"I am now in my 70s. In my gradeschool, during the McCarthy era, I told my teacher my dad was a communist. He was an economist," Crackerbelly wrote.
"In Kindergarten, my daughter told her teacher that mommy drinks and drives all the time. Coffee. From Starbucks," Jessica wrote.
"Well I once told my kindergarden teacher a man climbs over our fence to visit my mom when her husband is not home... It was a handy man who came to fix gates when they were stuck," Annie wrote.
Ultimately, McCausland’s story is a fun reminder of how children see things through their own unique lens and, with total innocence, can say some of the funniest things. It’s also a great warning to parents everywhere: if you aren’t clear with your kids about what you do for a living, you may be setting yourself up for a very embarrassing misunderstanding. So, even if you think they know what you do ask them as see what they say, you could save yourself from a lot of embarrassment.
This article originally appeared last year and has been updated.