Why is the language barrier so problematic during Bruce's early months with the Motilone tribes? Is it more or less difficult than with the Yuko? Why?

Bruce simply cannot communicate the gospel to the natives. This is the whole reason he is there. By listening carefully, he begins to pick up words, to distinguish present and past tense, and to write down what he learns. The adults are also captivated by his antics though it soon becomes uninteresting to the Motilones and to Bruce. He clumsily tries to imitate the craft of arrow making and watches as the women weave. He sees there is little overt emotion among the people and little need for discipline of children.