闲话 (xián huà): casual conversation; chat; gossip; to talk about (whatever comes to mind)

After work, I chatted with my colleagues for a while in the café downstairs, and it helped me relax a lot.

Neighbors often gather in the community garden to chat, and the atmosphere is lively.

During the lunch break, colleagues chatted while eating lunch, and time passed quickly.

On the train, I struck up a casual conversation with the passenger opposite me, and before I knew it, I had missed my stop.