Answer:
Choose a position. The people you are trying to persuade need to know for sure what you are trying to get across. they shouldn't be left confused about your message.
Understand the audience. In order to persuade you need to know what your audience will listen to.
Do the research. In order to make a strong persuasive argument you need to be able to back it up with research.
Identify the most convincing evidence, as well as the key points for the opposing view.
Have a counter argument.