1.At the last Wednesday of the every year, a celebration is held, to celebrate the new year. Iranese seeing fire as a symbol of luck, they believe in can ward off evil spirit and make them rich. and that's why the celebration is held.
2.On New Year's Day morning, people go out, if they saw anyone,they smear red powder onto their forehead.Teenagers load the water pistol with red ink and shoot it at relatives to show "happy new year" and good luck.
3.They splash water to celebrate new year,water is meant to wash off the bad things to bring the good things. So it become a tradition.
4.In the end of the year,Spain has "eat 12 grapes" tradition. you eat the grapes that symbolise wishes come true when the gong strikes for a new year. So they hope for a better year.
5.In Portugal bull fighting is the fashion. ten days around new year's day is the highlight of bull fighting.Thousands of people surge to the bull fighting pitch in each town to watch the performace.
6.In Canada,they build a snow wall to ward off monsters, snow is considered lucky in Canada and when new years arrives, they don't clear the snows around their house, rather they make it into a wall to stop monsters and make them happy.
7.In Brazil, they try to find fruits every New Year's Eve, when the gong strikes for midnight, people surge through the wood and try to find a rare fruit, who collected the most fruit is the one that is the most happiest person.
自己翻译的,我住在英国。
参考资料:自己写的