The Qingming Festival is an opportunity for celebrants to remember and honour their ancestors at grave sites. Young and old pray before the ancestors, sweep the tombs and offer food, tea, wine, chopsticks, joss paper accessories, and/or libation to the ancestors. The rites have a long tradition in Asia, especially among farmers. Some people carry willow branches with them on Qingming, or put willow branches on their gates and/or front doors. They believe that willow branches help ward off the evil spirit that wanders on Qingming. Also on Qingming people go on family outings, start the spring plowing, sing, dance, and Qingming is a time where young couples start courting. Another popular thing to do is fly kites (in shapes of animals or characters from Chinese opera).Others carry flowers instead of burning paper, incense or firecrackers as is common.