Buses in London are on another planet regarding the way you act on them. ONE of the biggest differentiation to a driver on a London bus and back in Oxford is that London drivers 1. Do not like to be spoken to. 2. Don’t like being thanked.
The best way to deal with it is tap your Oyster card head down, and just get on the bus. To be honest now they are “no cash” buses they can’t be approached to often so I suppose they are happy.
The other difference is they are always rammed! Especially night buses. These are a sight. A night bus in London would make for an interesting documentary for sure. People being sick, or singing out of tune. Even if you’re lucky like a friend of mine, being robbed on one!
But seriously the latter rarely happens.
But, yes remember 9 times out of 10 you shall have a quiet(ish) journey,