Recent debates around multispecies communities emphasize collaboration across difference for fostering intimate relations with the world. The basic premise is simple: a richer understanding of the ways in which we are connected to the world will yield greater care for the world. However, while collaboration across difference might close conceptual and material gaps between self and other, and nature and society, it is not always clear whether or how collaboration should take place. Indeed, largely absent in these debates are matters concerning cross-species consent. It can be challenging to obtain consent or ascertain agreement in the absence of straightforward communication. To address the whether and how of collaboration across difference, this article draws on ethnographic research on dowsing—a traditional method for finding underground water and other invisible or intangible resources—in the United States and the United Kingdom. This research shows how dowsers establish dialogue by attuning to Earth Others (e.g., water, plants, spirits) using various tools, such as dowsing rods, pendulums, and their own bodies. This article addresses how practitioners apply dowsing as a technique for communicating across human and more-than-human divides through ethical inquiries that tend to the agency and seek the consent of Earth Others in matters concerning land use. This research suggests that dowsing offers a reciprocal and dialogic strategy for collaborating with that which is often unseen, unheard, or ignored.