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Once the adhesive has had a moment to set slightly (check product instructions for specific drying times, though typically it's still workable), take a carpet pile brush or a stiff-bristled brush. Gently brush the repaired area in various directions, then in the natural direction of the carpet pile. This action helps to fluff up the fibers, blend them seamlessly with the surrounding carpet, and remove any stiffness caused by the adhesive, making the repair virtually undetectable.