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small talk; chat; gossip
隣の席の人と世間話をした。
I made small talk with the person sitting next to me.
待合室で世間話をしながら順番を待った。
I waited for my turn making small talk in the waiting room.
世間話が上手な人は初対面でも打ち解けやすい。
People who are good at small talk tend to open up easily even with strangers.