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Trả lời #5 của Black trong «Kỹ năng mỉm cười khi gặp khách hàng»

How to Smile With the Eyes Scientists have pinpointed more than 50 different types of smiles, and research suggests that the sincerest smile of all is the Duchenne smile--a smile that pushes up into the eyes. Smiling with your eyes is also refered to as smizing. [1] The reason it's more genuine is…