Well, Halloween isn’t a big thing in Australia, but my friends and I like to do it anyway cause it’s fun. However, most of the time after we yell trick or treat! the person behind the door goes “oh, is it halloween or something?” so we go with simple and traditional costumes so as not to confuse. I’m usually a witch, easiest thing to throw together without having to buy anything. Don’t know if I will this year though, it might be more confusing for Australians if 16 and 17 year olds are trick or treating…