Huck reveals himself to be very empathetic here. He imagines how people would react to a set of circumstances, like the trail left by the rocks leading down to the river. However, Huck’s empathy is limited. It may extend to a search party, for example, but it will not extend to people like Jim, who Huck thinks of as being, in some ways, inferior to white people, until Huck matures. That being said, Huck does have a unique imagination that will enable him to so mature, as indicated by the strangely imagined sensation he has of “smelling” lateness.