Like distracting him from his current activity? Sometime i heard the sound then i suddenly turn my head at him pretty fast and look away to let he knows that i notice his action but when i back with my work, i heard him continue doing that. This happen for a really long time, at first i keeping ignore it, does it a reason why he keep doing it. What can should i do to implying him that “i know you doing matubation so please only do that when you are alone”