The Jehover Witnesses will drive by and give the aliens a bunch of books and magazines, then mark their territory card "complete" and mark down their time on their timesheet. Afterward they will gather at a local donut shop and brag about how their new study is "Out of this world!!!" (then mark down more time on their timesheet).
ROFLMFAO!! Geeze, you could pioneer by doing this! What if the Borg (from Star Trek TNG) showed up? Can't you just see a conversation between a pioneer and a member of the Collective:
Pioneer: Hello, how are you today?
Borg: Earth creature.......primative.
Pioneer: Well we were just calling on you and your borg friends to ask them if they think they'll ever come a time when God will put a stop to all the wickedness we see in the world today.
Borg: A foolish question. All earth will be assimilated into the Borg.
Pioneer: Well if I could just direct your attention to a scripture in Psalms 37 vs. 10 & 11, note what it says "....and just a little while longer and the wicked one will be no more." Doesn't that sound nice?!
Borg: All wickedness will be assimilated. You will service US.
Pioneer: Well actually, we'll all be serving Jehovah God. You'll have those implants removed and once more your flesh will be like the flesh of the youth. Would you like to know how you can live in such a world? Resistence is futile! I would like to offer you a home bible study. I'll come by here every week for one hour whether you like it or not. Your life as you knew it, is over.
Borg: (faultering).....well......but, that is my line to you.........warning, warning, danger, danger..........
Pioneer: Fine. I'll see you next week. Here's a couple of magazines that I'll be quizzing you on too, so make sure you read them.