You should never have to tell someone you are a Christian. They should know by the way you treat them.
That which makes us DIFFERENT, will make a DIFFERENCE in the world some day. Be Yourself.
Courage is the discovery that you may not win, and trying when you know you can lose.
If you don't want it bad enough to risk losing it- you don't want it bad enough.
If you only do what you know you can do- you never do very much.
Your purpose in life is to use your gifts and talents to help other people. Your journey in life teaches you how to do that.