Are bubbly girls attractive?

And by "bubbly" I don't mean a superficial dumb blond. I'm a bloody IB student, can't be half that dumb. By bubbly I mean happy-go-lucky, always smiling, jumping, being friends with everyone, acting like a comedian on stage all the time. Sometimes I feel like I should turn my personality by 180 degrees to be actually liked by guys, because they seem to go after those mysterious, reserved ones more and it makes me kinda sad.
Are bubbly girls attractive?
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