I have heard over and over again in my life the charge that the LDS Church believes in the concept of "Fake it 'til you make it" and also that "lying for the Lord" is okay.
That is not true, and members of the Church, especially, should not perpetuate that false charge.
I have searched long and hard, and there has never been any official statement
from any leader I have ever found that uses the term "fake it 'til you
make it" or encourages, in any way, "lying for the Lord" - or even implies that message. The first is a phrase that an
anti-Mormon group coined to describe the idea that expressing a
testimony helps build a testimony - and those two concepts are radically
different from each other. Seriously, they are radically different
concepts. The second actually is a phrase I have heard justified by Protestants when I lived in the Deep South - and from a man who was distributing pamphlets outside a Seminary building that included blatantly doctored "quotes" from the Book of Mormon, Joseph Smith's translation of the Bible and other Mormon scriptures. He was called on it and said, as a justification for such obvious dishonesty, that we was lying for the Lord - that the ends (tricking people to lead them away from the LDS Church) justified the means.
Both of those charges are false with regard to the LDS Church, and, at the very least, members of the LDS Church should recognize that simple fact.
5 hours ago