reserved
to keep someone in the loop
to put in a nutshell
beat about the bush
concise
rampling
to get straight to the point
extrovert
coherent
persuasive
to talk about the most important point
to include someone in the communication
to delay talking about something
outgoing and fun loving
talking in a confused way
clear and easy to understand
to make it brief
good at influencing people
reluctant to speak
succinct