Smile when you first start talking to someone. Humans are biologically programmed to look for a smile when they first meet, and to be uncomfortable when they don’t get it. Smiling shows that you are relaxed, comfortable, and having a good time—which means that she'll enjoy spending time with you more than she would with Mr. Grumpy. But don’t keep your smile permaplastered on your face; that will seem fake.
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