small talk
noun
- light talk or conversation about unimportant or uncontroversial matters
Wiktionary
noun
- Idle conversation, typically regarding innocuous or unimportant subjects, usually engaged in at social gatherings out of politeness.
“[T]o the credit of the lady it may be added, that […] without any of the arts of flattery or the gaieties of small talk, he began to be agreeable to her.”
“If he had a fault as a conversationalist, it was a certain tendency to monotony, a certain lack of sparkle and variety in his small-talk.”