This week I was reading in Alma where Alma and Amulek are teaching the poor people.
In chapters 32-33 Alma teaches about the seed and faith. Then he turns the time to Amulek for chapter 34.
What struck me is the beginning of the chapter. "...after Alma had spoken these words unto them, he sat down upon the ground, and Amulek arose and began to teach them."
For Amulek's part, Alma stepped back. He was the senior companion--way senior. He was the prophet, and Amulek was a newly reactivated member on extended splits/exchanges.
But Amulek gets to teach the most poignant part, about the Savior's atonement. And he does it beautifully. And about prayer and charity. It's so lovely. Some of my most motivating verses in all scripture.
I'm not really sending you this info because I think you need to know it. It's because I need to, but I thought you might be interested. As a missionary, sometimes it's time to stand up, while sometimes it's time to sit on the ground and let the other guy take the teaching lead. He might surprise you.