Most of us feel a certain ____ about our friends. We are pleased that they have chosen us, and that we have chosen them. We tend to believe that they ______ some important truths about who we are. Yet making friends isn't an exercise in free choice, any more than buying a house is. We buy houses according to what we can afford and what happens to be on the market when we're looking. Friendship is rather_____. We can only choose our friends from among the people we meet. And we can only make friends with people who are interested in knowing us.