talkA group of men were talking in the street.
sayI couldn't hear what they were saying.
chatWe were just chatting about the party.
have a chatWe had a little chat over the garden wall.
chatterThey spent the morning chattering away.
go onHe's always going on about how much he hates his work.
mumbleHe mumbled something about it being a waste of time.
mutterShe walked past me, muttering to herself.
whisperWhat are you two girls whispering about?
conferYou can confer with your teammates before giving your answer.
converseformalI had a very agreeable evening conversing with my guests.