Start With a World Vision:
Memorize Great Commission verses like: Gen 12:1-3; Psa 67; Matt 24:14; Matt 28:18-20; Mark 16:15; Luke 24:45-49; Acts 1:8, Rev 5:9-10 and Rev 7:9-10.
Read a good introduction to missions such as:
Let the Nations Be Glad
2020 Vision
The Church is Bigger Than You Think
Don’t Waste Your Life
Finishing the Task
Read missionary biographies such as:
Hudson Taylor’s Spiritual Secrets
Green Leaf in Drought Time
The Heavenly Man
Shadow of the Almighty
Eternity in Their Hearts
Strengthen Your Involvement:
Form or join a local prayer group focusing on missions.
Commit to pray for a Bible-less language group.
Attend Missions Conferences
Share Your Vision for World Missions:
Distribute unreached peoples materials to others in your church
Become part of the mission committee in your church
Write to missionaries to encourage them, and pray for them specifically
(If you need help in finding a missionary to write to, send me an email)
Serve:
Befriend foreign nationals in your local school and/or neighborhood.
Do evangelistic mailings into least-reached countries and peoples.
Go on a short term mission project to an unreached people group.
Join a work team serving needy people groups and regions.
Obtain counsel from mature believers and experienced missionaries.
Prepare yourself to go as a long-term missionary
This is just a few ideas to get you started. I would love to hear from you with some ideas of your own.