Does a guy like you if he picks on you or hurts you physically in some small way?
Generally, yeah. I don't know how old you are, but as a rule,
the younger the guy is the more likely it is that he will express
"liking" a girl in this manner. I'd watch that physical harm thing
though, if it's causing you discomfort and he won't stop, you might
not want to get involved. A little playful pushing and light
wrestling is actually kinda cute, but if he's pushing you down
stairs or knocking you up under cars, maybe you want to pass.