The famous bait and switch outreach trick. Lure in the non-Christian with something cool like Kool-Aid or dodgeball or picnics, then shove the good news down their throat. Or maybe it’s feeding homeless and slipping a tract in between slices of bread.
There is a beautiful section from the book Lest Innocent Blood Be Shed that relates to this:
Help must never be given for the sake of propaganda; help must be given only for the benefit of the people being helped, not for the benefit of some church or other organization that was doing the helping. The life and the integrity of the person helped were more precious than any organization.
When push comes to shove, we do not and should not help and love people just for the chance to share the gospel with them. As soon as we do that, we are no longer in an I-Thou relationship, but an I-It relationship, in which the humanity of the other person has been ignored by us for the sake of our church or our organization. Can’t we just help people and love people as an end rather than as a means?