It's your Curriculum vitae. It is a summary of your educational record, your achievements, and your experience and is designed to get you an Interview when you apply for Jobs.
Here is an article from the BBC:
http://news.bbc.co.uk/1/hi/business/2950896.stm and an
example
Really you need to look at the type of job your applying for an tailor your cv to that area. So if your applying for a job where you'll be working with customers anything that shows you engaging with others would be good on the cv, as would anything that shows confidence.