You'll learn a lot from this friend and will look up to them as a mentor who can teach you about the kind of person you want to become. You'll be able to talk openly with them about things that come up, and they'll understand you well. Through this openness, you'll grow to understand yourself better, which will aid in your career, your personal relationships and all other areas of your life.
Socially, you'll encourage your friend to make the most of their contacts. You'll have fun together and you'll also point it out when there's an opportunity that could develop into something more. You'll make each other feel strong, motivated and lucky. This aspect will foster warmth and kinship between you.