Hello friend....
Thanks for sharing this great piece with this community...
First of all, i wont forget to commend your efforts in putting the ways that makes the readers to clearly understand after reading witb ease and without stress. Your points giving away answers to the said questions are solid with maximum ideas to back up your points.
Communication is indeed very essential for living. When we move around from place to places, we interact with new people and even people we had known before. When we have good communication skills,passing across a message from you to another person wont be a problem because there is a way in whicb you communicate that makes it easy to comprehend.
Like we were taught in high school about the types or ways of communication, we have the verbal, non verbal, and written communication.. all with right approach delivers the right message

Good luck pal