Hey! it's pretty simple you can ask questions, answer them and get points and the more questions you answer the higher the point and then you get ranked by how many points. If you ask a question it takes points away. you can add friends and also ask a person a qustion by sending them a messages. You get notification that you'll want to check (it will tell you if someones answer your qustion yet) the most important part is have fun and learn!