I am not sure of all the ways points are earned best answer gets you points so does having best caption of the day I think asking a question may get you points they can be used for gifts ,cards. Tokens I think you have to buy. Hope this help a little.
here ya go:
Tokens--- (you have to buy them) EPTokens are good for premium gifts, greeting cards, exclusive gestures, and much more. Show a friend on EP that they're in your thoughts by sending them something special today!
How to Earn Points:
The easiest way to earn points as you surf the web is to install the EP Toolbar which earns you points every time you use it to search for something (and saves you time!).
Also, you can earn points by doing your online shopping through EP in our very own EP Mall. Here you can shop at big online retailers like Amazon and other but earn points for doing so!
You can also earn points in 5 main ways (click each to expand it):
1.Contribute to the Community >>
2.Build on Other's Contributions >>
3.Earn Votes and Awards from the Community
4.Spread the Word about EP >>
5.Participate on the Site >>
How you can Spend Your Points:
•Purchase gifts at the Gift Shop
•Sponsor a Group that Means a Lot to You
(YOU CAN FIND ALL OF THIS ON YOUR HOME PAGE UNDER THE CATAGORIES)