In 1 Timothy 4:12, Paul exhorts Timothy to "be an example of the believers" and specifically lists some ways that he can be an example, including with his words (the type of language he uses), conversations (the things he talks about - or doesn't talk about), charity (service, kindness), spirit (Spirituality), faith (faith is shown through our actions), and purity (living virtuously).
The Sons of Mosiah taught with "power and authority from God" and were instrumental in bringing many people unto Christ. In Alma 17:2-3, we learn that they were able to teach with such power because they searched the scriptures diligently in order to know the word of God, which gave them a "strong knowledge of the truth" and "strong understanding," and they also gave "themselves to much prayer and fasting," which helped them to have the "spirit of prophesy and the spirit of revelation."
All throughout the scriptures, the Savior invites us to come unto Him, and his chosen prophets also invite everyone to come unto Him. One of the most beautiful of these passages is found in Moroni 10:32-33, at the end of the Book of Mormon, where Moroni invites us all:
32 Yea, come unto Christ, and be perfected in him, and deny yourselves of all ungodliness; and if ye shall deny yourselves of all ungodliness, and love God with all your might, mind and strength, then is his grace sufficient for you, that by his grace ye may be perfect in Christ; and if by the grace of God ye are perfect in Christ, ye can in nowise deny the power of God.
33 And again, if ye by the grace of God are perfect in Christ, and deny not his power, then are ye sanctified in Christ by the grace of God, through the shedding of the blood of Christ, which is in the covenant of the Father unto the remission of your sins, that ye become holy, without spot.
Moroni describes a process that can and should occur within each of us frequently as we come unto Christ through repentance and partaking of the sacrament with the offering of a broken heart and a contrite spirit.
Remember that "if ye have desires to serve God ye are called to the work;" (D&C 4:3) - the work is inviting others to come unto Christ.