So i actually deliver a commentary on a bus driver online, the bus that i took home from after my dinner with friends. The politeness of him is so much to the extent that all the boarding passengers would greet him back before and after alighting. Not kidding but all the passengers filled their face with smile to the driver. "Welcome on board" "Have a nice day!" It sounds abit too weird, save it for the air stewardess. But it makes a great difference for the travelling.