What does it mean if a guy pinches you?

We work the same place. However, I dont know much about him except that he is a Christian and Married. He has been helping me with some PC issues. He seems friendly and jovial. One day out of the blue , he pinches me lightly while saying "Dont want to interfere with you and your work, so I am going". He also wanted to see pics of me.
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+1 y
He is MARRIED
What does it mean if a guy pinches you?
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