Final answer:
Apache people are likely to keep silent during religious ceremonies or rituals, as understood from Keith Basso's article and the language practices of indigenous cultures.
Step-by-step explanation:
According to Keith Basso in his article "To Give Up on Words," Apache people are likely to keep silent when participating in religious ceremonies or rituals. This can be drawn from a broader understanding of various indigenous cultures, where speech and silence play specific roles in social situations and ceremonies. For instance, other indigenous groups, like the Wauja, employ specialized forms of language in religious settings which can imply the sanctity and gravitas of silence within such contexts.