2) “Smile.”

Smiling does make you more attractive. And by smiling we influence others to smile. People judge things more positively while smiling, so our own smile can set off a chain reaction causing more positive encounters.

Via Choke: What the Secrets of the Brain Reveal About Getting It Right When You Have To:

The NYU students smiled, on average, a little over once a minute when they were with a smiling confederate and averaged only a third of a smile per minute when they were with a confederate who did not smile. We judge people and objects to be more pleasant when we are smiling in comparison to when we are frowning, so if you want your interviewer to think positively about you, try smiling.

So there’s truth to “when you’re smiling, the whole world smiles with you.”

How can you improve your smile? Smile slower.