How to register
On the registration page click on Tickets. From the appearing menu choose "GRASTA 2018 Ticket".
The ticket includes social events, coffee breaks and a MensaCard for the university canteens. It will be charged with 40 euros, which should suffice for four meals. One can replenish the balance at a card machine. (Of course, we would help you with it.) Under this link one can find an example of the menu of the main canteen.
If you will be accompanied by a further person, you may also want to buy the "GRASTA 2018 Social Events" ticket. This ticket includes an excursion to Berliner Unterwelten and a social dinner at the Sphere Restaurant of the Television Tower.