Is he flirting or being nice?

I’m working in mall. A guy at the lunch takeaway / restaurant keeps being super friendly , quiet hands on , offers discounts and said I should come work with him. He does the odd playful thing to make me smile. Is he flirting? I don’t know him well enough to know if he’s single. He never mentions a partner just a child.
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+1 y
He knows I’m single
Is he flirting or being nice?
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