An awkward talk 尬聊
I had an awkward talk with my dad about my job last night.
昨晚我和我爸尬聊了下我的工作。

A weird talk that leaves someone speechless
尬聊
My boss talked about his boss with me this morning. It was a weird talk that left me speechless.
我老板今早和我講他老板的事情。真是挺尷尬的一次聊天。

Small talk 閑聊，寒暄
Mary introduced me to her parents, and we sat there making small talk for a while.
Mary把我介紹給了她爸媽，我們坐下來寒暄了一會。

Chit-chat 閑聊
We ran into each other at the pharmacy and had a little chit-chat.
我們在藥店碰到了，就閑聊了一會。

Group Chat 群聊
Could you please show me how to start a Group Chat?
能教我下怎么樣發起群聊嗎？