Check the description of the events. The events with the description 'BY US' are the ones that we are coordinating.  The events with the description 'ON YOUR OWN' are on there to give people ideas of what types of events they can do on their own or with friends.
If you plan to attend any of the summer events organised by us you  need to sign up on Karin's door or email Laurie at admissa@d.umn.edu.