I believe this is a frequently asked question in any college interview or application form. The point the applicants need to understand here is that the college administration is looking for people who could contribute to the general environment of the college as well as education.
The best answer could be something like.." I am a person with a very positive attitude and a very friendly nature. I can be a good team player as my asset is my communication skills. I believe I would stimulate positive competition in my college through my hard work and dedication to my studies.
My extracurricular abilities in sports, literary societies, dramatics etc would prove to be an asset to the college. As these activities help in creating a good learning environment for all the students."