Tips for social survival included complimenting a rude person to disarm them, mastering a friendly smile to boost rapport, and asking two follow-ups then validating answers to make someone like you fast.
Thrifts hide profitable jewelry, experts recommend investing part of every paycheck into an S&P 500 index fund, and waking up a bit earlier gives you hours back in the week.
Those are highlights from the full list of 19 hush-hush hacks—simple moves people say changed their lives.