
Become a donor...sign a donor card, talk to your family and friends so that they know what you want. You won't need the bod, whichever direction you go from here, and besides, if there IS an afterlife, surely you get brownie points for helping someone in THIS life!
Appreciate someone who's only doing his(her) job. You've been there. Just remember. For one day, don't bitch out the waitress. Don't scream at the cop. Don't backstab a co-worker. Don't call to complain that the garbage truck is making too much noise. Just let it go.
Sympathize with a teacher.
Sympathize with a parent.
Empathize with a child.
Say "I love you" to someone who can't hear it.
Let someone say "I love you" to you.
Learn to like yourself.
Let yourself try something you've always wanted to try. Conversely, don't let anyone make you try something you don't really want to do. Big or small.
Appreciate something a friend is capable of that you never really noticed before.