If they miss you, they’ll call. If they want you, they’ll say it. If they care, they’ll show it. And if not, they aren’t worth your time.
As we go through life, we have the opportunity to meet a variety of different people. Some become casual acquaintances who we just smile and wave at when we see them and others don’t merit a second thought after they walk out the door, but a select few will make it into the inner circle and become friends.