Mr Blair with his slightly ready smile and his boyish energy was, when Mr Hague's age (36), in some peril of being labelled a twit.

ECONOMIST: Twitchy times for William Hague

Devade listens to him with a slightly wry smile.

NEWYORKER: Labyrinth

You will look more comfortable, conscientious and caring if you smile slightly EVEN when you are delivering bad news.

FORBES: Smile For The Camera -Media Training

So if you want an authoritative, neutral appearance while having to announce bad news, you still need to smile slightly.

FORBES: Smile For The Camera -Media Training

Before, it had been warm and slightly dumb, the smile of a young lady from a provincial capital, but it had become a mean, hurtful smile, and it was easy to read the resentment, rage, and envy behind it.

NEWYORKER: Clara

But Bigelow chose an appealing actress to play her: Chastain has a slightly distraught look, a sudden smile, a warm-spirited responsiveness.

NEWYORKER: Dead Reckoning

One of the most appealing: Stand with your head slightly tilted and your hands clasped, and with a smile and a gaze that meets the other person's.

FORBES: Business Basics

Romney slightly pivots towards the person who is talking, has a slight smile and generally soft eye contact with that individual.

FORBES: Three Methods of Persuasion You Can Copy From Obama and Romney (and one from Joe Biden that you should not copy)