The Common App activities section is an opportunity to demonstrate to the Common App colleges your talents, skills, and specific examples of extracurricular activities you’ve participated in over the last few years.
One of the many reasons we start to work with pupils in the 5th form, when planning US college applications, is that there is so much to plan. Extra-curriculars is an important part of your application and should be seen as an integral part of any competitive application.
The College Essay Guy has a range of tips to help you think about this and to plan how you can use your extra-curriculars to add value to your college application. Read his blog and maybe watch some of his YouTube videos.