Every Member is a Missionary

Mormon President David O.McKay stated this quote above as part of his pitch while prophet of the LDS church.
"Writing in the American Journal of Sociology, (May 1980), Rodney Stark and William Sims Bainbridge traced how LDS literature instructs church members in how to use personal friendships and other contacts with Gentiles to proselytize as hove missionaries. The authors outline how leaders teach the Mormon rank and file-including new converts in foreign countries-to use their everyday encounters with Gentile neighbors to encourage conversions.
This plan starts with simple neighborliness, doing such favors as babysitting, running errands, lending tools. With each gesture, Saints are taught to reveal a new bit of the Mormon lifestyle and faith. When a Gentile praises a Mormon girl's performance as a babysitter, her parents reply that the church's tight family bonds make members good with children. A loaned tool comes with a brief sermon about being self-sufficient and prepared for any eventuality. Appreciation for running an errand is met with an explanation that Mormons stick together and see to one another's needs in good times and bad.
Gradually the talk moves toward doctrinal matters such as how the gospels in most Christian churches are mere fragments of a truth shattered by early church schisms and now have been restored by Joseph Smith. Stark and Bainbridge in their study, "Networks of Faith: Interpersonal Binds to Cults and Sects," observed as well that the instructions urge Mormons to shy away from discussing religion directly but rather to ease their targets toward such consideration by incrementally exposing them to LDS beliefs and practices.
It amounts to nothing more than making friends with the neighbors by doing truly friendly things and then eventually offering the new friends a chance to visit their church. The Stark and Bainbridge study compared LDS church figures form a single year (1976-77) in a state of Washington and found that even though door-to-door missionaries were winning only one convert for every thousand families they approached, the home mission method was working in a startling 50 percent of the cases.
Ordinary Mormons operate under an informal quota requiring that they bring one person per year into the church through the home missionary work. The key here isn't that every Mormon brings in a new believer each year, but that families work for many years, hipping away at their Gentile neighbors until eventually they win them over. It may take years of insinuating church ideas into a relationship based largely on talks about what to feed the children and how to fight crabgrass, but finally the targeted Gentiles come over, If it takes six years to convert a Gentile family of six, then the proselytizing Mormon family has met its quota, and the growth continues."
(In Mormon Circles, James Coates, 1991, Addison-Wesley Publishing Company, Inc., p147-148)