Unit 259
(Why are all the people here? What are they doing here?)

What are you guys doing?
Just having a chat.

What are you guys doing? ≠ What are your guys doing?
He is a good guy. 　She is a good guy.　(×)
Just having a chat. = we are/we're just having a chat.
He's having a chat with Mary.
There are chit-chatting.
I don't like bad guy.
Hi! Guys, what are you doing?