Should I do something?

There's a guy in my class that I like. Sometimes we talk to each other, he always compliments my work and sometimes he also touches or helps me with stuff. But other times he is distant and doesn't show much interest. How can I tell if he is being friendly or he's flirting? Should I do something to get closer?
He likes you
Vote A
He is just being friendly
Vote B
He is being friendly but chances are he would date you
Vote C
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Should I do something?
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