I never understood the screaming.
Like, "Woooooo!" and "Yeeeeaaah!". These are normal. But just opening your mouth and relentlessly screaming at people non-stop—people trying to perform with sound, no less, and not a single shark or bear around.
Edit: Okay, it hasn't been studied hard. But apparently it could be a natural bevaviour to get attention over other competing females.
Now I'm no love guru, but this is not how it is done. Unless there is indeed a shark or bear or something similar, it is unlikely to be appreciated And I'm fairly confident this is the case for all genders, just in case some of you guys out there are thinking about screaming at someone to break ice for a cheeky, "How ya doin'?"