You can get free AP by checking out offers, completing surveys, and (my favorite) watching videos. These offers give you anywhere from 2 to 1,000 + AP, depending on what is required.
All you need to do is:
- Log into your aeria account
- near the top of the screen, click on the "AP" icon
- Click on "Earn Free AP"
- complete offers, watch videos, do surveys
The AP will be credited to your account soon!
Hope this helps!