Imagine a Grumpy Santa
How popular would Santa be without his smile and his Ho,Ho,Ho?
And how famous would the Mona Lisa be had she been painted with a frown instead of that knowing smile?
Studies in neuroscience, anthropology, and psychology all confirm the powerful of influence of smiles.
Telephone solicitors know that their closing ratios actually improve if they smile during their pitch even though the person on the other end of the...