1. He was also very charming, an easy smiler, witty, relaxed and vivacious.

2. Mr Kim is an ace non - smiler.

3. Okay. Please arbitrarily decide on the smiler.

4. That is to say, a smiler should be mentally sound, optimistic in mood and firm in faith.

5. As you get used to being a smiler, you'll start doing it naturally — including at the people you most want to meet.

6. Now, the person who is the mandated smiler, on three, please smile. One, two, three. Okay.

7. Smiling is inseparable from smiler, it can neither be bought nor be rented.

8. It helped that Christian Bale, a reluctant smiler whose sharply planed face looks as if it had been carved with a chisel, slid into Bruce Wayne's insouciance as easily as he did Batman's suit.

9. In their new paper, Dr. Niedenthal and her colleagues point to a number of studies indicating that this imitation activates many of the same regions of the brain that are active in the smiler.