That's your own little missionary culture. Now your environment may change and you may move, but your responsibility doesn't. You are His ambassador wherever He puts you. Now Christmas is the best window of the year for sharing Jesus Christ. Hearts are softer this time of the year than any other.
People are open.
Christ is everywhere. You can't even go to the mall without hearing Him sung about. It's never easier to talk about Jesus than it is right now. The devil though loves to see us so consumed with Christmas busy-ness that it keeps us distracted while the window in lost hearts is the most open. Think about it.