Jack Nicholson might be the only man allowed to wear sunglasses indoors (a lá Steve Jobs’s New Balance sneakers). Not because of his fame, or his acting capabilities; these, like the sunglasses are just a by-product of his gestalt.
With an authentic mischief that resonates in his smile, Mr. Nicholson has always exuded how comfortable he is in his own skin. You can not fake that, nor imitate it, but you can hone it in.
Cockiness is off putting and bland. Self-confidence is attractive and makes strides in style. This is why no matter what his age, he draws the right vibes and glances.
Very few people on the planet can walk that fine line with such precision.
Cheers to you Jack!