Some everyday conversations today: In the shop buying bits of school uniform and new trainers for the youngest. The pleasantries of other shoppers and of shop assistants making small talk.
Small talk
Chitchat
Pleasantries
Talking rubbish
Niceties
These social niceties are usually about some common/everyday topic such as the weather, how quickly children grow, the incresaing prices / prices these days. Shop assistants patter is often a faux surprise that they’ve only just seen the item you’re purchasing and exclaim “Oh isn’t that nice!” “Oh that is a nice find!” Perhaps in a large shop or secondhand shop they really haven’t seen it but it does seem the default nicety response.