Answer:
Using facts that are backed up by creditable sources, keep a level head; speak or type confidently, when trying to persuade someone don't be quick to correct them or talk over them. make sure you let them share their views and then if you can, rearrange your passage to best fit their ideas.
Step-by-step explanation:
(trust me, as a student studying law for fun, we do this a lot.
Hopefully that was helpful to some extent.)