There are some sounds that stay with you, rattling around in your brain until they become part of your sonic memory. See enough movies, and certain sound effects will hold this honor—like the Wilhelm ...

You know that sudden, awkward giggle that slips out in the middle of a tense conversation or serious moment? It can feel strange, even embarrassing, to laugh when nothing is remotely funny. But this ...

If you’re paying close enough attention, you’ll easily recognize nervous laughter as incongruous to the situation—as mostly fake. And this despite the laugher’s actual intentions being largely ...