Be realistic about how much time you can commit. The key to a successful extracurricular experience is quality over quantity. It's far better to be deeply involved in one or two activities you love than to be stretched thin across five or six clubs you barely attend.
: Competitive and intramural sports, including everything from Basketball to more specialized activities like Table Tennis Special Interest extracurricular activities richard guide
When documenting activities for college admissions or employment, the description matters more than the title. Be realistic about how much time you can commit