A ‣ Idioms connected with communication problems
B ‣ Good talk, bad talk 
The boss always talks down to us. [talks as if we were inferior]
My workmates are always talking behind my back. [saying negative things about me when I'm not there]
It was just small talk, nothing more, I promise. [purely social talk, nothing serious]
Let's sit somewhere else; they always talk shop over lunch, and it bores me rigid. [talk about work]
Hey! Your new friend's become a real talking point among the staff! Did you know? [subject that everyone wants to talk about]
It's gone too far this time. I shall have to give him a talking to. [reproach/scold him / tell him off]
C ‣ Talk in discussions, meetings, etc. 

1 start the discussion
2 say it in few words
3 come to the important part of the matter
4 say exactly what I think
5 finish the discussion
6 says intelligent, reasonable things
7 says stupid things
8 says things in a long, indirect way