define persuasive techniques?

Answer 1

It's a technique to try to get someone to do something -- or at least change his/her mind.

Answer 2

Possibly these articles will help a little more.

http://www.members.cox.net/dagershaw/lol/InfluenceAntecedents.html
http://www.members.cox.net/dagershaw/lol/InfluenceMorePrinciples.html
http://www.members.cox.net/dagershaw/lol/InfluenceStillMore.html