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This picture is a good example of a confused look. The man is scratching his head, looking up in the air and has furrowed eyebrows.

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The boy's body language in this photo shows that he is bored. His eyes are almost closed, he is slouching and he is holding his head up with his hand.

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Snoopy and Charlie Brown are clearly happy in this picture. Their happiness is shown through huge smiles, holding hands and dancing together.

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The baby in this picture appears to be sad. Her pouty lip and facial expression make it look like she is about to cry.

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This image shows two people that are yelling at each other.  The non-verbal cues that show that they are angry is that they are face-to-face, with their mouths wide open, as if they are yelling at each other.