You can meet more people, expand your social circle, expand your contacts and exercise your communication skills. These organizations are a stage to show yourself, where you will participate in or organize many activities, which can exercise your organizational ability, planning ability, leadership ability and execution ability. Joining these departments can make it easier to join the party. Generally speaking, as long as they are still sophomores and juniors in the student union and are recommended to join the party, as long as they do not fail, they can basically go through the motions.