Varying amounts of hellos or had waves from the bars what I’ve found out today is if you have a mechanical no one stops to ask if you want help, or if your ok, and I mean no one.
I had a double puncture hit a pot hole at speed, just didn’t see it until too late, not good!
On the mtb, Wales or Scotland or even just a blast round Cannock you stop have the bike upside down 90% of passing bikers will stop say hi do you need anything, on the road no one.
I remember a day out at Afan, some how my brother blew a tyre, shredded it pieces in one bit, I used cable ties to hold it together, a passing biker had masking tape (no idea why) helped patch it up to get him back to the centre. Mtb’ers always much more helpful and friendly!