She laughs from all my jokes even the bad ones why?

my co worker she is a girl, and I tease her all the time and flirt with her. She always laughs from all my jokes, even the really bad ones, and I am not that funny...

Why is that? does she like me? lately I heard from a friend of mine that she talked about me and she said I am handsome, polite, and have great personality.

What do you guys think?

She laughs from all my jokes even the bad ones why?
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