> When they were standing 20 metres from each other and tried to say things like "take off your hat" or "pick up the shovel" they had to give visual cues after

> When they were standing 20 metres from each other and tried to say things like "take off your hat" or "pick up the shovel" they had to give visual cues after trying the whistle a few times and failing to get the message across. That's interesting -- the one situation I saw had the whistler specifically mention that they were Japanese. In hindsight, the listeners clearly could have figured that out from the camera crew and language...