- Location
- Glasgow
When I did my ride leader course our instructor got beeped at because the driver behind understood he was turning rightI've always thought that the slowing down signal can easily be interpreted as an indication to turn by other road users.

On led rides , the ride leader will put an arm straight up , not to stop , but to ask their assistant to come up front beside them , usually at a junction.
The motion is actually an "agitation of the arm raised up" (@pjd57 and I sometimes ride with the same leaders) but the "agitation" is mostly dispensed with, we know what they mean.Whatever group is using that instead of the "ten-pin bowling" signal needs farking shooting before the infection spreads.![]()
Once I had a bit too many riders, so a promoted another to keep an eye on the back.
At a tricky junction I shouted her name, raised and waived my arm: she did not come ... oh, I thought you were just waving at me ...

The stopping thing is a hazard, I just shout slowing down, then stopping.