This will vary depending on where you live. If you live in a country which allows proselytizing you can distribute tracts, and share the Gospel freely with strangers or friends. However, if you live in a “closed country” or one which prohibits proselyting you will need to limit your sharing to friends or colleagues and begin by “testing the waters” by sharing from your own experiences with Jesus, general characteristics of God, or Bible stories. You will need pray for understanding of how to balance wisdom and boldness. In both cases you should be ready and willing to lose your job, leave the country, or worse because risk always exists when we share Christ (Matt 10:16-22).