Most people think that a drowning person will call for help. This is not true. A drowning person (child or adult) is struggling to get that next breath. They have no energy to make a sound. I experienced watching a near drowning. I remember looking at a child and thinking "that child is drowning" I was unable to convert that thought into actual action. Thankful someone else did respond. Mentally practice responding to any sign of struggle. Numerous people have drown in crowded pools.

Please thank those lifeguards when you see them and don't distract them from watching for the silent drowning in progress.