Things cyclists should know … POV driver who's incapable of cycling

I have noticed though, that quite a lot of clubs do seem to have a rider at the rear of their groups, that seem to shout forward to the others that there is a vehicle approaching, following which the riders space themselves closer together on the left of the lane allowing the kind of spacing I like to have between me and the cyclists when I go past them. They restore my faith in the concept of cyclists considering other road users when I've just had an experience with the other kind, and when I'm back in my lane I usually flash my hazards a couple of times as a thank you.

FYI riders in a group will often point out upcoming hazards I the road (potholes, slippery drain covers, parked cars) to riders behind (as they will have reduced visibility of the road ahead) so if you see arms gesticulating at the road, it's probably not a safe time to try an overtake as the group may need to change course slightly.