This interesting video goes into the depths of persuasion.  If you think about it in our world this video is basically saying:

1-      You have to have rapport

2-      You have to have common ground

3-      You have to differentiate yourself

4-      You have to be credible and have knowledge

5-      You should have references who can enhance your credibility

6-      You need proof of seriousness

7-      Must have likability

http://blog.hubspot.com/sales/6-principles-of-persuasion-video?utm_campaign=blog-rss-emails&utm_source=hs_email&utm_medium=email&utm_content=27732998