Do all you can, use all the tricks and techniques of communication but if you do not appear sincere in your communication, no one is buying your ideas. Definitely not for long. Tricks can give you short term gains
Tell you what, the only way to appear sincere is by.. being sincere.
And this is the toughest work in communication.
It’s an identity change and hence people, from the highest level leaders to those who have just started working, fail.