small talk

Từ điển Oxford Advanced Learner 8th

ˈsmall talk [small talk] BrE NAmE noun uncountable
polite conversation about ordinary or unimportant subjects, especially at social occasions
•They made small talk for half an hour.
•He has no small talk (= is not good at talking politely about unimportant subjects).

Example Bank:
•She was good at making small talk to put guests at their ease.