The hot job in Japan right now: smile instructor. Industry founder Keiko Kwano reckons that demand for her smile tuition services has quadrupled since last year as masks in Japan finally begin to slip below the chin. Japan officially lifted its COVID-era mask recommendation in March this year, but masks were popular in Japan before the pandemic, and a recent public poll found that just 8% of locals no longer wear masks at all. But as the phiz reemerges, locals are paying 7,700 yen (around $83) for an hour-long ‘Hollywood Style Smiling Technique’ session. We immediately thought of Jack Nicholson in The Shining, but the trademark smile turns out to be much gentler: you round your cheeks and show the 8 middle teeth of your top chompers. Back in a sec, now where’s that mirror…