Evangelization is oddly hard in a world so connected and interconnected as we have today but imagine it in a world separated by distance and hard and dangerous travel. It is the nature of missionary journeys to travel far into the unknown and often by unknown means.
Pray for all those who dedicate their lives to their brothers and sisters no matter where they may be, even those who work in their own backyard.
Avoid everything that would lead people to regard you as singular, severe or as one who exceeds the bounds of piety. Should they complain of you or blame your behavior, it will then be needful to redouble your prayers for such persons, that God in His goodness may chase from their hearts all that is an occasion of trouble or annoyance to them. Nevertheless, speak whenever a pressing necessity invites you, such as charity to your neighbor or the obedience which you have promised to your superior. In such cases, think beforehand what you ought to say, and express yourself in few words, and in a gentle and respectful tone, which will indicate the humility of your heart. You should also observe the same rule when anyone questions you. If you remain silent for a time, it should be done with a view to edify your neighbor and to foresee what may be conveniently said when the moment for speaking shall arrive. Beseech God to supply your silence and to interiorly make known to others that the obligation you are under of subduing the tongue prohibits you from speaking to them.
-- From Treatise on the Spiritual Life