If the two of you are moving in different directions — say, you're waking up for 6 a.m. yoga classes and she's still hitting the bars every night — you may need to set your friendship aside to focus on new priorities in your life. As people grow and change, says Steve Brody, a psychologist in Cambria, California, they must let friendships take their own course. If that means drifting apart, let it happen. "It just means that your interests are different right now," says Brody. You have only so much time, so use it to allow stronger friendships to blossom. But think carefully before cashing in an old friend, Brody adds. Instead of dropping out completely, "keep the Christmas cards going." In time, you may be able to restart a friendship on new terms.