Watch the video at BusinessInsider.

"Luckily, there are signs we can look for when trying to detect a lie.

"I normally introduce myself by my first name.

"I went out with a guy based on his use of dashes once.

Farhad Manjoo (photo, left) doesn't like it when people put two spaces after a period.

Bianca Nogrady reports on the topic over at ABC Science (Australian Broadcasting Corporation's online gateway to science).

"There’s nothing more irritating to a pedant’s ear than someone saying “mischievious” instead of “mischievous,” and nothing more embarrassing than realizing you’ve been pronouncing the word mischievous with an extra i for your whole life.

"Asiana Airlines flight 214 crashed upon landing at San Francisco International Airport on June 6, 2013.

Jennifer Frost presents an infographic on the topic.

"If you’re a blogger, content writer, journalist, or novel writer, here are 10 FREE online tools that I recommend you to use to make your writing life a whole lot easier: .

"Facial expressions are a universal language of emotion, instantly conveying happiness, sadness, anger, fear, and much more.

"A friend of mine received an invitation to interview at a company.

"All it takes is a single tweet or text for some people to reveal their poor grasp of the English language.

According to Drake Baer, "Within moments of meeting people, you decide all sorts of things about them, from status to intelligence to promiscuity.

"In honor of National Etiquette Week and our just-published list of the 45 best restaurants in America, we decided to clear up some common etiquette questions," writes Megan Willett.

"Want to make a better first impression and engender positive feelings that last a long time?

See Damon Nofar's slideshow - 8 Tips for an Awesome PowerPoint Presentation - at BusinessInsider.

Nancy Duarte covers a recent speech by Emma Watson given at the United Nations Headquarters.

Drake Baer makes the case.

The material associated with this item is no longer available, but we invite you to read Jason Nazar's article in Forbes on the same topic, "The 21 Principles of Persuasion.

The Writer's Center at the University of Wisconsin, Madison, features an article on the topic of writing clean, concise sentences.

Take this quiz to see if you have the knowledge to travel like a pro.

Haiku Deck gives their picks for "Decks of the Year.

"Public speaking is hard enough without shooting yourself in the foot with simple mistakes.

According to Jacqueline Whitmore (photo, left), "When we’re young, our parents and teachers often instill the importance of saying, “thank you.