Do GUYS like it when a girl is giddy?

Do guys actually like girls that are giddy and are all so happy it makes me sick? It is so fake, don't you see it? In school, guys always went for the fake "happy" girls who say "yea" all the time. It is really annoying. Yet someone like me who isn't that excitable, but I have my moments, when I laugh or smile it is REAL, not fake like these girls. Do guys not see that these girls are just fake? Or do girls only notice these things?
Do GUYS like it when a girl is giddy?
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