Cajolery is a noun that refers to coaxing or flattery.
The word cajole is of French origin, and it means to persuade or coax with flattery. Cajolery is the noun version that refers to the act of cajoling. Here’s an example.
I was hoping I didn’t have to resort to cajolery in order to get a raise, but a few minutes into my meeting with the boss, it was clear that I needed to tell him his shoes looked great if I was to stand a chance.