Read About Missions and Missionaries
Read books and explore web sites about missions and missionaries. There's nothing like reading a great missionary biography. You could read "Uncle Cam"--the story of Cameron Townsend who founded Wycliffe Bible Translators. If I had my book collection handy (I'm in the middle of a move, so it's boxed up), I'd suggest some others you might read. The Urbana site has a good list of books about missions. As far as missions web sites, check out http://www.calebproject.org/ and http://www.urbana.org/ and http://www.ad2000.org for starters.