There are different kinds of qualities each of us looks for in a friendship. Introversion, extraversion, loudness, reservation, patience, humor, kindness, strength. Regardless, we all need a friend, someone in whom to confide our triumphs and failures. We all need someone who just gets us and who helps us get outside of our own heads.
We are social beings by nature and long for meaningful interaction with others to brighten our days and ease our worries. The amount of friends we have doesn't really matter though; quality seems to always beat out quantity in this department. So whether you have one friend or 100, be sure to seek out these qualities in the friends you have always had, the ones you have yet to meet and in yourself as a friend to others.