What is the most important skill that college students need to learn?

I’m trying to give a list of stuffs for a student of any stream (in undergrad).to maintain a decent CGPA very good communication skills (in english) everything about C++ and python, acquire skills to implement basic and medium algorithms in any of these two (not copying codes)to have a good grasp of algorithms and data structures(optional) to know one foreign language as third language (apart from your vernacular and english) e.g. Japanese, German, Spanish, French, Italian, Chinese to have a wholistic development of personality, if possible, to do a bit of exercise, to have healthy food, not to stay awake at night (if not stuck with assignments) and sleep any time to be punctual and true to words, to friends, to classmates, lab-mates, group study members or teachers; to be diplomatic only when you need, don’t make it a trend often to make a lie.(optional) if possible, and time allows, to read a bit of history or travelogues or whatever interests you and peripherals. Most importantly, to make it a habit to speak less and listen more.