"I'm a Christian"

So last week, I challenged people: the next time someone asks you to tell a little about yourself, begin with "I'm a Christian."  Then see what happens.  But I don't mean in a defensive or egotistical manner, but a humble one, since we are Christians because we need Jesus.  This is our identity, first and foremost, yet we often keep our faith private or just for Sundays.  If you do this, comment here.  I would be interested in hearing what happens.