Go to My Account, then User Points. If you have any, they'll be listed alongside what you did to earn them. If you don't, there's a lovely list telling you all the ways you can earn points (and there's quite a few!) Hope this helps!
Sponge Fighting Instructor, and Keeper of the Llamas for the Realm of Nessa!
"Dance hard, laugh loud, and never misplace your sponge"