Know where to find the sunrise and sunset times and note how the sky looks at those times, at least once.
Teens think listening to music helps them concentrate. It doesn't. It relieves them of the boredom that concentration on homework induces.
Skill is successfully walking a tightrope between the twin towers of New York's World Trade Center. Intelligence is not trying.
Know how and how much to tip people who expect gratuities, even in the case of poor service.
Be able to blow out a dinner candle without sending wax flying across the table.