Step 1: To crumple slightly (to roll) an earplug in forward part.Step 2: Having raised a hand through the head, to delay a little it an ear up so that the earplug could be inserted into acoustical pass on a straight line. Then to insert an earplug other hand in acoustical pass and to press a little.Step 3: Excellent fixing and optimum protection. Earplugs are easily taken — to turn them enough.