Wave hands like a ghost and say: "WHOOOO, WHOO, WHOOOOOOO!!" Variation: Wail, "BOO! BOO! BOO!" three times and then yell:"YAHHH!!"
Wave hands like a ghost and say: "WHOOOO, WHOO, WHOOOOOOO!!" Variation: Wail, "BOO! BOO! BOO!" three times and then yell:"YAHHH!!"