hear it on the grapevine
get straight to the point
be on the same wavelength
get a word in edgeways
actions speak louder than words
have a quick word with someone
think before you speak
share similar ideas
talk briefly to someone
talk about the most important thing immediately
get a chance to say something
hear about a rumour pass from one person to another
what you do is more important than what you say
don't start talking until you have thought what you want to say