Make sure you stay in touch with your best of friends over time. After all you have to be a friend to have friends. Work on your friendships and invest time, energy and effort. After all it's the right thing to do, and at the end of your life it will be your family and your closest of friends and those relationships that you will cherish and hold dear as you look back on your life. It's the right thing to do and it models the way for others.