Question

which of these is a positive facial expression
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Answer 1

Nodding while listening is the positive facial expression.

Answer 2

Answer:

Although smiling is – of course – an important expression when we are presenting, trying to maintain a constant tooth-show will make you look more like a leering sociopath than a happy, enthusiastic presenter. Practice smiling with your eyes. First grin slightly, then narrow your eyes – slightly – into a stare.

Explanation:

Nodding while listening is the positive facial expression.