Usher (include) in your most powerful arguments with such friendly remarks as:

“It will be for the jury to consider,”

“This may, perhaps, be worth thinking of,”

“Here are some facts that I trust you will not lose sight of.”

“You, with knowledge of human nature, will easily see the significance of these facts.”

No bulldozing. No high-pressure methods. No attempt to force his opinion on others.

-Principle 4, How to Win Friends and Influence People, p.174