What we remember about the pleasurable quality of our past experiences is almost entirely determined by two things: how the experience felt when it was at its peak and how it felt when it ended. (Daniel Kahneman, Nobel Prize winning psychologist)
Hence, if you wish to make people like you or listen to what you have to say, focus on TWO things.
1. Create a big WOW moment in your message
2. End with something pleasant, like a compliment, a nice word, a greeting.
If you want to inform about something negative, make sure your message is presented in a plain way, entwined in other facts, so you avoid a peak, or make the peak as weak as possible. Also make sure to be pleasant in the end.
Thanks for reading, have a lovely day... :)