A tactile interface for a computing device includes a tactile layer defining a primary guide and a secondary guide. The primary guide is tactilely distinguishable from an adjacent peripheral region and arranged adjacent a first input region of a touch-sensitive surface. The secondary guide is tactilely distinguishable from the adjacent peripheral region, arranged adjacent a second input region of the touch-sensitive surface, and defines a peripheral boundary of a range of motion of a finger moving between the primary guide and the secondary guide. The first input region is independent from the primary guide, the second input region independent from the secondary guide.