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.
我老板今早和我讲他老板的事情。真是挺尴尬的一次聊天。

Small talk 闲聊，寒暄
Mary introduced me to her parents, and we sat there making small talk for a while.
Mary把我介绍给了她爸妈，我们坐下来寒暄了一会。

Chit-chat 闲聊
We ran into each other at the pharmacy and had a little chit-chat.
我们在药店碰到了，就闲聊了一会。

Group Chat 群聊
Could you please show me how to start a Group Chat?
能教我下怎么样发起群聊吗？