"She laughs at the time to come": such laughter reflects an attitude of confident hope in the face of adversity and the unpredictable challenges of life.

BBC: Archbishop's sermon in full

First, Google's speech-recognition technology lets it scan videos for cues such as laughter.

CNN: What makes a YouTube video funny? Google wants to know

Of course I couldn't see the response as I was speaking though I could hear the claps and the laughter but the lighting was such that I couldn't actually see the audience.

BBC: October: Ann Widdecombe